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02-13-2009 Post does not mapped to Knowledge Tree
jessie.dazzle


Paris, France
Posts 456
Joined on 04-23-2006

Post #: 126
Post ID: 9740
Reply to: 8138
Cheating on Madame Macando
fiogf49gjkf0d
Forgive me for being so forward, but I have been holding it in for some time, and am right now, at this very moment, ripe for saying that I see this MiniMe thing as being analogous to an affair with a capricious little mistress bitch on the side. One with whom I think you are destined to become bored and frustrated. She is from another generation; you will simply offend yourself by attempting any interaction beyond the first-degree, the primal and the physical.

While admiring your youthful persistence, I feel the time is right to have that wronchy one-nighter and "get her out of your System".

Yes I too have something on the side; a pair of dirty-little-cheap-whore computer speakers, for which, given their humble origins, I can muster some respect.

Apologies; emotions getting the best of me here! Not to be take too seriously.

jd*




How to short-circuit evolution: Enshrine mediocrity.
02-13-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 127
Post ID: 9744
Reply to: 9740
Agree and disagree
fiogf49gjkf0d

 jessie.dazzle wrote:
Forgive me for being so forward, but I have been holding it in for some time, and am right now, at this very moment, ripe for saying that I see this MiniMe thing as being analogous to an affair with a capricious little mistress bitch on the side. One with whom I think you are destined to become bored and frustrated. She is from another generation; you will simply offend yourself by attempting any interaction beyond the first-degree, the primal and the physical.

While admiring your youthful persistence, I feel the time is right to have that wronchy one-nighter and "get her out of your System".

Yes I too have something on the side; a pair of dirty-little-cheap-whore computer speakers, for which, given their humble origins, I can muster some respect.

Apologies; emotions getting the best of me here! Not to be take too seriously.

There is no need to ask forgiveness – being overly forward is the only one way to communicate that makes sense for me.  I partially agree with you and in some instances I do feel disappointment with the direction where MiniMe have gone. However, I have some retinal that I sell to myself and that makes my actions semi- lucid.

You see, I have no other playbacks in my home besides Macondo. To power up Macondo I need 12 amplifiers, juts think about it. I have a habit to keep Macondo powered all time. Sometimes I keep the Macondo up from Friday afternoon to Sunday night, in many instance I leave home for a couple hours and do not turn amps down. It is hard to explain but when the amps up and Macondo is ready to play then it set some strange feel of comfort and calm in my room. You see, I listen a lot of FM, in many instances I have no idea what will be next and I like the ability of playback to be always on. It is not only music. I am a huge NPR fan and we have heard 2 stations that do NPR broadcasting. You know that feeling of “can’t get out of driveway NPR programming”? I catch it very frequently and I like to keep my playback all time up. Funny, but besides all considerations of perspective use of DHT tube for MF that might not be suitable for all-time-on-type of operation there is a consideration of electricity cost – it is actually tangible.

So, the ides to have a cheap and not demanding substitute for Macondo does not sound too pointless to me. I did bring up some alternative solution but they sounded very annoying even for listening the BBS news, I am not kidding. So, initially the MiniMe was conceived as not-annoying, all time on, alternative amp-driven speaker that will be literally all time on.

Here is where the plot got thicker. I am a bit lost balance where to stop. I thought to make MiniMe imbedded into Macondo’s frame but I realized that I might do better. At that moment I had to abandon any DIY attempts and get a commercial mini monitors. I did not. I think that was a mistake.  However, for the time and the money I have spent on the MiniMe I do not feel comfortable to "get her out of my System" not to mention that I would still need some kind of “all time on pilot system”.

So, in one way of other I will finish the MiniMe and will make it “none-annoyingly” sounding. Was it the best way to go and would I be able to make it by other means – unquestionably there are better ways.  However here is where I am and I need to get beast from the situation I found myself in.

The wonderful think about having an affair with a capricious little bitch on the side is to return back to your THE Woman and to realize how magnificent and how valuable for you your “the woman” is, if she is.  It sound strange but you would be surprise how much I learn about Macondo playing with MiniMe. It is not that I did not know the things about MiniMe – I very much know what I am doing with sound in my room, but I to my surprise realize that that to have a good quality but smallish mini-monitor with it’s mini-monitor in the Macondo’s listening environment is useful for some many perspective.

So, I would like the MiniMe to be finished and operations. I would like the MiniMe’s prose was outsourced all together from beginning but I did not go this way. My mistake but it is what it is.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
02-13-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 128
Post ID: 9745
Reply to: 9735
The Cantare drivers and the Foxtex’s bid
fiogf49gjkf0d

 el`Ol wrote:
Romy,

I find the Veravox 5 drivers are strong contenders when searching for elevated sensitivity 5" drivers. I heard the Veravox 5X in combination with Shindo SET electronics and found it very natural-sounding. Both 5ers have ceramic magnets, however (the X-version a double one, back to back). The 5S can be got from Solen, the 5X currently seems to be sold out (also in Europe).


Your lautsprechershop.de looks like have them and they do look like interesting drivers.

http://www.lautsprechershop.de/hifi/index_en.htm?/hifi/cantare_en.htm

I never heard any Cantare drivers. I might herd them in fact but I never care too much about drivers if there were not mounted in horn and if I heard Veravox in any of box speakers before then I might just did not pay attention to them. I do not know a lot about the box speaker as what the time of my audio Age of Enlightenment came I was in the horn universe. I went of Foxtex not because I like them - in fact I do not – but because it might be a “safe bid”. In addition the 120A model will be different from all Foxtex that I heard and the custom cone treatment that will be implemented on my drivers will make them to sound very different than what I know. I have to note that what I said in the previous sentence all is allegations and promises from other people - I have no idea if it would be accurate but it might be “acceptable” in context of MiniMe restricted demands. I had a few interning 5” drivers in my aim but I figure out that Foxtex would be the safest bid and the easiest bid. Let see how wrong I was…

BTW, if I have an easy option to try the 11cm Gorlich drivers then I would gladly do it but to pay $1.4K juts for “trying”, without anybody underwire the result, is too much

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
02-16-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 129
Post ID: 9778
Reply to: 9727
F120A
fiogf49gjkf0d
 Romy,

 I picked up a pair of FX120 and F120A drivers over two years ago. I initially spent some time with the FX120 in a small 10-liter ported enclosure (similar to Fostex' recommended one but altered dimensions). After many months of listening I decided to swap the F120A in place of the FX120. The result was not subtle... despite the two drivers sharing several components (main difference is in the magnetic assembly), there is a significant improvement with the F120A. It's nothing like the other FE and FF series drivers. My initial posts on AudioCircle resulted in Jim buying a pair and immediately sent them to Bud for treatment (without having listened to them). My initial post is here:

http://www.audiocircle.com/circles/index.php?topic=46749.0

 In short, I've not had any treatments done to them, but they are by far my favorite of the small Fostex drivers and do not suffer from the typical "upper midrange shout" that the other ones do. They do have two limitations: 1- at 89dB sensitivity they don't get very loud with low power SETs. 2- With a 10-watt rating, you need to careful how hard you push them. In any case, within their limitations they are very good.

 Regards, KM


... just because you're paranoid, it doesn't mean they're not after you ...
02-16-2009 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,644
Joined on 10-12-2006

Post #: 130
Post ID: 9779
Reply to: 9778
89 dB???
fiogf49gjkf0d
But how does that work with tiny amps?  Is this a case where the thing is used solo, as "FR", or something, or is it part of a starts-at-89dB multi-driver speaker?  I had some Rogers LS35As a long time ago, and they were fun for a while, nearfield, but with 25 WPC, min.  Adding Satterberg woofers changed everything, however.

Are the 120As perhaps "easier to drive" than other 89dB speakers?  How loud will they comfortably get?

Without going back to look, I thought I remembered the M&M tweeter and 2105 at ~93dB?  So the tweeter will get padded down, now?  Add the networks and woofers...  Sounds like a typical power-hungry box to me...

Best regards,
Paul S
02-16-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 131
Post ID: 9780
Reply to: 9779
Nearfield friendly?
fiogf49gjkf0d
 Paul,

 Points well taken. The F120A is listed as a FR driver. In my humble view, it does quite well for it's size, albeit the last two octaves will not be in full force (okay, the last octave is mostly MIA). It's lower sensitivity does not imply it's hard to drive... quite the opposite. It's an easy drive with a zero feedback SET and does not suffer from some of the problems of multi-way systems with complex crossovers being driven by such an amplifier.

 It has a very flat and peak-free response that extends beyond 15KHz, you get the benefit of the single driver concept, but you suffer from the low frequency extension (size does matter at some point). It provides a neutral presentation and delivers well on low-level detail unlike many other (Fostex) FR drivers. You even get the crisp sizzle on cymbals as an example, but none of the typical upper midrange shout common with many of the FE and FF series (which drives me nuts in a short timeframe).

 Due to it's size and sensitivity it could easily make for a nice nearfield monitor with 4- to 8-watts... maybe less. The Alnico magnet assembly (IMHO) is what makes these more unique when compared to the FX120... and the build quality and robustness (for such a small driver) does make this a much better driver (compared to the FE and FF series) but they do cost a lot more. Of all the smaller Fostex drivers, these are by far my favorite. Yes, they have their limitations, but they have their good points as well.

 Regards, KM



... just because you're paranoid, it doesn't mean they're not after you ...
02-16-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 132
Post ID: 9781
Reply to: 9778
The rumors about Fostex 120A
fiogf49gjkf0d

I am glad that you mention your use of 120A. I never heard it (consciously) and I bought it juts due to advice of 3 people, one of them was the guy who sold them. I have no idea what to expect from them but I think they shall not be too bad. I asked people about the 120A’s ability to care the ”absolute tone” about the ability to play loud but they do not comprehended what really I was asking. Well, the only think to get the right answers is figure out myself, I will. It looks like the Budanization treatment shall emptive further the 120A’s sound. I have no personal experience but I think it might work out. The guy from planet10-hifi looks like has a lot of experience with those drivers and he knows what he does. I do not know what his definition of “good sound” and where his reference points are but I do not think that whatever he does with the d rivers would hurt them. He claims a lot of different advancement after his treatment – will why not, it is high possible that he is correct.

My thoughts about the 120A are following. It most likely will be linear but with so typical for those drivers mechanic-like transients with some sense of hyper-resolution. I think that I might trey to battle it witch putting the RAAL driver in the game at HF and unloading the HF from the Fostex dome. It might work or might not – the Fostex might have a self sufficient HF, at least good-enough for the MiniMe objectives.

I do not think that Fostex 120A will play loud and it will most likely compress above 90dB as any other bad drivers. I think the compression will be due to soft cone exertion where the bend of the drivers will minimize the operational surface. People drive it all the way down but I will not and I will cross it relatively high, let say 500Hz and use a smallish box. By thin I will extend the power handling and possible ennoble it to play a bit louder.

Those are all speculation, let see how it goes. Floobydust, if you feel to express any critiques of the direction that I am planning to go with 120A then please do so. The driver will be her in a month or so…

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
02-17-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 133
Post ID: 9783
Reply to: 9781
More musings around the F120A
fiogf49gjkf0d
 Romy,

 Not sure I can add much more.... you'll find out yourself of course. Overall, I can not comment on the "enabl" treatment beyond what, Dave, Chris and Bud have said (Dave and Chris are the Planet10 guys). I think I would have tried them first before sending them off for treatment (the before and after experience). As for HF response, they do exceptionally well for their size. I don't find them offensive nor do I find them lacking. I also purchased a pair of the Fostex T90A tweeters to supplement them but never got around to adding them in after spending some time with them (F120A). Perhaps I should try and add them in at some point and take another listen. The frequency plot shows them to be exceptionally flat and well extended but they start droping off past 10KHz and another down-step after 15KHz. Still, listen to them before adding the RAAL and see what you think.

 As you're planning to run them in a limited range, I would still go with a larger box so you have options if nothing else. If you really have your heart set on the smaller box, I would be inclined to make it deeper and leave the back open and stuff it with fiberglass or whatever you normally use. I would also keep the frontal surface to a minimum and taper the edges off to reduce diffraction. The laws of physics will certainly limit their SPLs and (dynamic) compression will set in. Running them FR I feel this happens before 90dB, dropping off the LF should extend them a few dB or more. They do have a tight cell foam surround so this may limit their lifespan, depending on what they used.

 In any case, I'll be interested to hear your impressions on them. After spending some time lots of time with them, I picked up a pair of D5nf drivers.... here's some pictures comparing them side-by-side with the F120A. Enjoy.

http://community.webshots.com/album/561454797HMqgje

 Regards, KM


... just because you're paranoid, it doesn't mean they're not after you ...
02-17-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 134
Post ID: 9784
Reply to: 9783
About me, MiniMe, love and anything else.
fiogf49gjkf0d

Well, the points you bring up are valid but as anything else it all highlight problems with people not with equipment. I am not sure that I am glad with my decisiveness and sanity in MiniMe projects. I was trying to rationalize the MiniMe idea in the post above:

http://www.romythecat.com/GetPost.aspx?PostID=9744

… and did it and it sound sensible to me but my clear reasoning of MineMe concept did not bring yet any clear sense of accomplishment or even direction.

When I started the project I was under impression that whatever I will do will work or at least it I will be able to recognize as an acceptable for the given objective. However, if you look at the chain of mini-monitors that I in one way of another used over the few years for “all time all playback” then you see rather a chain of frustrations. The biggest problem is that even most of them are OK from hi-fi perspective but as soon they play classical repertoire (99% of my casual listening) then they begin to throw all imaginable nastiness that annoys me tremendously.  Then there is Macondo that is always a switch away…

If to call any of small speakers that I had in my room as MiniMe then it always well observable difference between Macondo and Macondo’s MiniMe. In trims of association I would call the difference is in perception of love. The Macondo has the perception of Florentino from “Love in the Time of Cholera”. It is idealistic but capable and faithful. The MiniMes are more in the line with Richard Sherman from “The Seven Year Itch” – it is self-delusional, malpracticing, contradictive and destructive. It is very indicative to have them side by side. The idea with my custom MiniMe projects is trying to leverage that sense self- destructiveness by letting MiniMe do not do anything specifically good but at the same time setting a base where MiniMe would not be doing the bad things. Well, it turn out that it is easier to say then to do.

Now I moved to another uncharted territory with F120A driver that would most like force me to use another enclosure for MF section (the bass section will remind as it is very good). I have no idea what I will be getting from F120A and this made me to plug the Planet10 guys into the game. From my experience with JBL LE8 I remember that the aluminum cone needed a lot of work, why do not let somebody else to deal with it who reportedly has this experience? About the “enable” – I do not know. I personally do not have experience, people swear that it helps and I also receive some warning from people that it also hurts. I have no idea how to intermit all of it, not to mention that I never heard anything TOGETHER with the people who support of deny the benefits of “enable” treatment. We can run out mouths on internet for year but until two people are sitting in the same room, demonstrating to each other the witnessable results and correlate own reference points about the heard then it is very difficult to find and subjective common denominator for sound assessments.

As far as I can see it the main benefit to have the Planet10 involve into the F120A’s saga is to have somebody to blame if the drivers will sound like crap. What do you expect – I need to preserve my ego.

Anyhow, let see how F120A will work in band-path. It is possible that it might be good enough (for MiniMe objective) without any tweeter – I will be only welcoming this news. I suspect that I would need to kill the F120A’s “resolution” with a very mind inductor but they are juts speculations at this point. Obviously I will listen to them before adding the RAAL. I wonder how low F120A goes without filter in open baffle or in open box that you proposed? It is can do 3250Hz-300Hz then 600Hz-700Hz might be a good crossover point trying to dive it hard.  The specks for his drive show very low response but I have no idea in which enclosure then measured it.

The caT


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
02-17-2009 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,644
Joined on 10-12-2006

Post #: 135
Post ID: 9786
Reply to: 9784
Another Brain Fart
fiogf49gjkf0d

Perhaps on a given planet it might make sense to use a Tannoy DMT 10 or Sterling HE as the Oops channel AND the Always On Channel, just by swapping or switching the cables, per function?  I mention it because these are two potentially-inoffensive (mid-field) monitors that can actually put out some Music, too (given enough power, of course).  Totally ignoring all efforts and expense in other directions to date, this just might take care of the space issues and the sound concerns simultaneously?  (And perhaps the Smithsonian would be interested in the exotic leftovers...)

Best regards,
Paul S

02-17-2009 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,644
Joined on 10-12-2006

Post #: 136
Post ID: 9791
Reply to: 9786
In Passing...
fiogf49gjkf0d
Probably not news, but:

http://www.supravox.fr/anglais/haut_parleurs/135_LB.htm

Another one that at least looks the part.

Paul S
02-19-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 137
Post ID: 9799
Reply to: 9784
How to properly high-pass a full-range driver.
fiogf49gjkf0d
 Paul S wrote:
Probably not news, but: http://www.supravox.fr/anglais/haut_parleurs/135_LB.htm Another one that at least looks the part.
Thanks, Paul. This Supravox 135 LB indeed looks like an interring driver for a project of mine. I have no experience with Supravox drivers, it look like then do not swim over the Atlantic well.
 Romy the Cat wrote:
Anyhow, let see how F120A will work in band-path. It is possible that it might be good enough (for MiniMe objective) without any tweeter – I will be only welcoming this news.
I was thinking about it further: if the Fostex 120A will be able to care HF acceptable enough without annoying me then I might end up to use one driver per monitor. Than begs tow biggest questions: what box to use and how to crossover the driver at the bottom. About the box. Sure I do not what it to be big. The Planetary’s David Dlugos proposed Aperiodic idea and send me information how it might be implements. Good idea but it would still require a slight bigger box then the MiniMe’s MF section is. I was looking at my closet and I have found a box the shape and dimensions I like – I will try to us it. It will be with semi-open back, let see how it goes. The approximate estimate of crossover would be 300-500Hz. I think I will measure how it will response wide open and then will cross is an octave or two above to let it to be stressed with less pain. Now the question how to cut the LF off the driver. If I have 200Hz then I have 100uF cap sitting in series with the driver. Molts likely I will go for my favorite active biasing filtering but I doubt that I like to pass the HF over this thing. I will not be able to use RL filer as it will eat a lot of gain. So, what other options I have to suck LF out of the 120A driver? A bi-amping with line level RL filter? That is a chance but is anything more elegant in there?

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
02-19-2009 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,644
Joined on 10-12-2006

Post #: 138
Post ID: 9805
Reply to: 9799
Cap and Coil
fiogf49gjkf0d
Romy, I suspect that 200 Hz high-pass will be too low for that driver, even 2nd order, and almost certainly with just 6 dB roll-off.  I think more like 500 Hz with 1st order, and might still require the coil.

Yellow-type drivers take on and amplify the sound of any enclosures.  I don't know about the Fostex 120A, but they often test other, similar drivers in OBs.  For one thing, OB adds ~ 3dB of potentially-interesting "oops", and can be "shaped", via baffle step.  For another thing, no box noise.  I also tried a small sealed box, and it was not so much "bad" as it just ate power.  A driver that small might do with around or even less than 1 cu. ft. box, whether sealed or ported, with minimal interior stuffing, crossed where it makes sense to do so.

I still like the idea of the dual-purpose oops/monitor...

There is supposed to be a Supravox USA, but I could not raise them via e-mail.  But the French are civilized, and easy enough to do business with, and decent prices (without VAT).  There is also an Italian outfit that promotes Supravox pretty heavily, with decent prices (without VAT)

Best regards,
Paul S
02-19-2009 Post does not mapped to Knowledge Tree
serenechaos
lost alamos
Posts 86
Joined on 12-01-2007

Post #: 139
Post ID: 9808
Reply to: 9784
Non annoying monitors
fiogf49gjkf0d
Good luck getting midrange from F120A for non annoying monitors. 
Seems reasonable to expect, many people have been very happy with these drivers... 
I haven't tried this specific driver, but have spent some time trying to get a similar (FE138esr) to "behave" well enough to be used as a "simple, second system." 
Although made by the "yellow driver company," these grey coned, alnico magnet drivers do have a different tone, and don't have the painful (to me) whizzer highs. 
I thought the 138 (later model of 5") would be great for this application.  
The magnisium dust cap was supposed to carry highs out clear to 30k, blah, blah...  

The dust cap made more peaks than whizzersand depending on the key the music was in, it was annoying, unlistenable...  
It did work well with a ribbon though.  
138 crossed below the peaks, first order, ribbon crossed higher, third order (had to futz around with that for a while to get it to integrate nice though). 
Have a slight (2dB) tilt down from 150Hz to 15kHz.  

The box is the on going problem...   
Tried Transmission Line (sounded passable, but a lot bulkier than I really want), sealed box (lost too much tone, sounded "stuffy," compressed), and planet10 bvr (good for firewood if I had a fireplace; sound like heavy felt was placed in front of driver). 

I've heard the planet10 bamboo aperiodic fonkens with enabled yellow drivers... 
I'll say that was enough to know not try that cabinet.  Or as my wife said, "why would anyone waste the time with those?"  They don't even do a girl singing with a guitar, what would they do with music? 
I mean, I know no box is going to sound like a front loaded horn. 
Or have the dynamics, or resolution, or not break-up @ higher volume levels.   duh. 
But I still don't think that "non annoying monitors" should be too big of a goal? 

Oh, and I did hear an extended A / B demo of enabled drivers, in my home. 
A guy brought some over, & I switched them back and forth @ will, with different material playing... 
No doubt about that one, Bud is on to something... 

Robert
02-20-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 140
Post ID: 9816
Reply to: 9808
Comparing apples to oranges
fiogf49gjkf0d
 Robert,

 It's well known that you (and others) had a bad experience with the FE138ESR driver. I've not heard the FE138ESR (yet) and will not comment on it until I do. Likewise, as you've admittedly not heard the F120A, to draw parallels to the FE138ESR and conclude that it's a bad performing driver is simply unrealistic.

 Regards, KM



... just because you're paranoid, it doesn't mean they're not after you ...
02-20-2009 Post does not mapped to Knowledge Tree
serenechaos
lost alamos
Posts 86
Joined on 12-01-2007

Post #: 141
Post ID: 9825
Reply to: 9816
Bad apples?
fiogf49gjkf0d
KM,
I don't know how you come up with the belief that I conclude that "it's a bad performing driver." 
Either the 138, or the earlier 120... 

Or that because I didn't use 120s that i haven't heard them. 
And as every other report I've heard, 120s have a nice midrange. 
And every thing I've read about 138s midrange is also positive. 

As 138 was later, higher-end model, I thought perhaps Fostex "learned something," and applied it to new model? 
Even if different "series," they are both hi-end, non yellow cone, non whizzered, alnico magnet drivers. 
And to my ears, much less annoying, with more of what Romy calls "absolute tone" than FE127, etc. 

"Bad experience?" 
I didn't say (or imply) that either, unless you really believe a 5" driver is going to be "full range."  
I had to work with it a little, cut out the peaks, & put a tweeter in for the highs.  So?  
Romy's already done more work than that with Mini Me and isn't giving up... 
Wouldn't that be like saying 2A3s were bad because you tried more than operating point, or the very first one didn't work with the rest of your set-up? 

The "bad performing" element I have now is the enclosure. 
Been through three boxes, with different sounds, all annoying in some way; will keep trying. 

I will say at this point they sound very much like 5" feastrex in the same design enclosure a friend has, who built about the same time. 
Very close mids & highs for a fraction of the price... 
And I'm quite sure a different box will get rid of the "muffled" sound; it wasn't there in the TL. 

So again, good luck to Romy with the 120s, I would think they should work well, especially with "Bud dots." 
02-20-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 142
Post ID: 9829
Reply to: 9825
An olive branch?
fiogf49gjkf0d
 Sorry Robert,

 Your opening line on "Good luck getting midrange from F120A for non annoying monitors." tended to set the mood for the rest of your post in a negative light for Fostex drivers, the F120A included (at least for me it did). While I will certainly agree that many of the FE series are hard to listen to, the F series is different in design and Fostex do not show anything beyond a very basic ported enclosure. The FE138ESR is suppose to be special, but reading thru the long DIYaudio thread on this driver has created a poor perception, coupled to the fact that Madisound has dropped the price yet again (probably trying to sell them off). The F120A has sold out 3 times in the last year despite price increases, some people are liking this driver, and not the FE138ESR.

 So if I was wrong, I'll offer the olive branch.... I do have a pair of FE138ESR drivers waiting for me when I get back the US. At some point I will fire them up and hopefully be able to share some views and thoughts on them as I also have the F120A and the Feastrex D5nf drivers. I also have very nice 45 and 2A3 amplifiers to drive them with, and yes, you can find some lesser operating points on both tubes.

 Regards, KM



... just because you're paranoid, it doesn't mean they're not after you ...
02-20-2009 Post does not mapped to Knowledge Tree
serenechaos
lost alamos
Posts 86
Joined on 12-01-2007

Post #: 143
Post ID: 9831
Reply to: 9829
"good luck" means good luck...
fiogf49gjkf0d
...no sarcasm was meant, nothing to "read between the lines." 

Several people seemed quite impressed w/ 138s in DIYaudio thread early on, said no tweeter ever needed, best mids they ever heard in anything, etc.  That was part of what prompted me to try them instead of 120s... 
I'm now guessing those people have very different taste,  have yet to hear decent horns, (e.g. planet 10 crew call blhs "horns"), or just can't hear the difference.  Many of them rant about FE127s as if they were as good as it gets, so I've learned to take it w/ a grain of salt...
And "good luck" with your 138s and D5nfs. 
I personally wouldn't recommend BVRs for either though, having heard them both in those cabinets. 
They can sound a lot better. 

The Fostex recommended boxes being only basic ported -- I'm guessing you're refering to 120s?
 138s have two recommended boxes, the "swan" design and a resonate pipe I'll probably try next. 
Will be very narrow, can fit in around horns, like mini me designs. 
I heard one @ RMAF w/ feastrex 5", was nice if kept in volume/dynamic/complexity bounds. 
Robert
02-20-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 144
Post ID: 9832
Reply to: 9831
Perception vs reality
fiogf49gjkf0d
 Robert,

 Agreed... many people rave about the FE126E in just about anything... yet, I find them irritating (upper midrange shout) before 1-watt sets in. The F120A (in a simple ported enclosure) is a completely different sounding driver. Still no idea what I'll do for the FE138ESR... was leaning towards the resonant pipe plans included.

 I built the BVRs for the D5nf over a year ago... not bad but bass shy and too low off the ground. I recently got the 30-liter triple ported enclosure plans directly from Feastrex... these are my next enclosure builds and will put them on custom stands to get the driver up higher. The D5s are impressive when driven well.

 In any case, do let me know how you fare with the FE138ESR.... especially if the resonant pipe enclosure works out. Cheers!

 Regards, KM



... just because you're paranoid, it doesn't mean they're not after you ...
03-10-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 145
Post ID: 9982
Reply to: 9781
The MiniMe bass sections.
fiogf49gjkf0d
Got last night the last bass drivers for MiniMe’s bass sections and put them all together. Even thought I still have problems with MiniMe uppers channels (the Fostex F120A drivers are still hatching) but the bass sections turned out to be very good. It is way more expensive then they need to be but the exploiting qualities and sound is very pleasing. I did not finish them yet as I do not know where to cut them at upper knee (it will depend where the F120A will roll of on my enclosure). I also did not fine-tune the port and rather am using the port flare with no pipe for a time being. Still, it is very satisfying sound. I got very slick and easy mandible LF section that are perfect for hide into the Macondo. My initial design with MF section sitting atop was too tall but the MF section on a dedicated stands and bass section stand alone turned out to be is absolutely perfect, even not intended from beginning, solution.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-18-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 146
Post ID: 10040
Reply to: 8138
Listening patterns: main vs. pilot playback
fiogf49gjkf0d

Hm, this is interesting.

I have my 2 shitty temporary monitors in Hamster position sublimated with a par of LF sections from MiniMe. They are not perfectly set up but quite listenable in it’s ad-hoc configuration driver by consumer PP SS amp. Here is what I found interesting. During the last 2 weeks I turned the big Macondo just 4.5 times.

First time it was 2 weeks back during broadcasting Bernard Haitink conducting LIVE Bruckner: Symphony No. 8 with Royal Concertgebouw Orchestra. I turned Macondo an hour early and warmed it up. After the concert I shut the Melquiades down.

Second time it was during the same week during Osmo Vänskä conducting LIVE San Francisco Symphony with Emanuel Ax played Mozart’s Piano Concerto No. 22. I started to listen it with my MiniMeed Hamster, like what I heard from San Francisco and turned the Macondo’s help

The half time was during the MET LIVE broadcast of Dvorak’s Rusalka. I was driving, liked the performance in car radio, got home, turned the Macondo/Milqs up but the MET’s sound was so disgusting that I shut down the Milqs and went back to the Hamster listening

The third time was this week during the LIVE broadcast of Hans Vonk lead Rotterdam Philharmonic with Mikhail Pletnev crashing through the Grieg’s Piano Concerto. I was listing it on the Hamsters but in the middle of the concerto I realized that after the Grieg Rotterdam will play Holsts’ The Planets. I turned the Milq on and tune the cooling fans off – speeding the Milq got hotter. I was shooting to listen the Neptune movement with it corals decay to darkness with full-bloomed Macondo and the fully-heated Milqs. It was a perfect timing and it sounded spectacular.

The last time it was yesterday when I was trying to prove to myself one more time my feelings that Stravinsky was not good conductors. A friend of my argued that Stravinsky was and proposed me to listed his “…Du Soldat” from 1961 with Israel Baker. I was playing the Colombia 6272 LP and of come for that evaluation I need the full Macondo’s authority.

That was it. All the rest time I was listening my “bad” speakers and I did not have a temptation to change anything – it was enough for me.  I played a lot of music those days and there were some other very good programs, including some LIVE programs but the Hamsters were enough. This brings an interesting forecast how much Macondo I might be using after I finch the MiniMe project with F120A driver. If the MiniMe will be fully balanced and calibrated then will it leave me with one or two deserving sessions per week what I will be encouraged to turn my playback at it full force? Well, whatever it will be but it certainly permit me to use those “hard to get” DHT tubes in less spearing way.

Anyhow, I am trying to evaluate what would be my listening pattern with main system and MiniMe after they will be fully running. I never had a sufficiently good “pilot system” and if you have an experience of prolong living with second playback then can you share what your listening hobbit are from the perspective of main vs. pilot playback?

Rgs, Romy the Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-28-2009 Post does not mapped to Knowledge Tree
yoshi
Jefferson (MA), United States
Posts 69
Joined on 05-04-2005

Post #: 147
Post ID: 10103
Reply to: 10040
My kitchen system
fiogf49gjkf0d
I have a second system in the kitchen. The speaker is a small Monitor Audio 2way which I picked up over 10 years ago for $500/pair (new). They are ported in the rear and hang from the ceiling in front of the brick wall, powered by chip amps.

This system doesn't tell me much about the quality of the recording, so I enjoy badly recorded good performances on this one, or use it when I just want to familialize myself with new music.

I tried a couple of different speakers (mostly small full rangers) in this system in the past, but always came back to this cheapie Monitor Audio. It adequately blurs the details, so you won't hear the minute nuances of the performance, but it won't exhibit any annoying anomaly and can communicate the grooves of orchestra pretty well.

Yoshi
03-28-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 148
Post ID: 10114
Reply to: 9778
Hm, either I am an idiot or anybody else are.
fiogf49gjkf0d

I got today the Fostex F120A with all latest and greatest modifications on it. I put is in a temp .7 cu feet box with pretty much open back to see what the Fostex will be all about. I drive it from a bad consumer SS, composite-chip Hitachi amp from 80s – bad sound but great huge analog meters.

OK, I admit that the amplification is crap but the sound that I got from Fostex F120A not good even with this amp. The initial connecting of the driver actually made me laugh – it was beyond all expectations bad. Surprisingly the driver was changing it sound right in front my eyes – I never see it like this and in ~60 minutes it was more or less stable in sound (It was burned-in by Planet10). However the sound is not what I necessary too toiled off. It has a strong effect of “paper cone sound” – something that I really hate in all of those drivers. The commentator of WGHB sound like he had his lips covered with thick motor oil – very unpleasant.  In the upper range it has sound like it talks inside of  2 gallon plastic contender with it’s walls covered with aluminum foil – very unpleasantly freaky feeling. The effect is greatly depends from how far I am from the driver axis. The effect is gone is I am 7 feet away and the drivers are turned in other side. Then the dynamics - it is a nightmare. I wonder what the people who comment positively about F120A ever heard that they commented positively about this driver. I do feel that only because the dynamic characteristics that the driver demonstrated so far it shall be absolutely disqualified from used. It is 87dB sensitive but it feels like it is 72dB sensitive… Usually to drive the speakers in this case with very powerful class A SS amp might help a bit (where is my Lamm M1.1) but with 10W of power handling and with my objective to have all time all playback it will not be a chance.

I do not know. These drivers need a lot of ignorance or a lot of imagination to call it “acceptable”.  It kind of even and smooth in a way, it has no good “absolute tone” even up to level of JBL5, but it looks like it  has no specific tonal preferences. I think that this Fi-Hi fairness was something that attracted people to Fostex F120A but it is too small in my coordinate system of judgment. Well, I would not say that the F120A annoys me – it does not and probably any other driver right off the box and in a random box would annoy me more.  Probably I need to give to F120A more time and see where it will be in a week, I need add to it bass channels, to high-pass F120A and see where it will lend.  My only hope that if I high-pass F120A high enough then it might pick up some dynamics. So, far I am not impressed, in fact disappointed.  The way I am playing it now it is the way in which all Fostex users use their drivers – a full-range only they also add a back loaded bass garbage disposal. Probably I need to learn from them now what kind of “single-driver institutionalized sound” they consider as a reasonable Sound….

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-29-2009 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 10,131
Joined on 05-28-2004

Post #: 149
Post ID: 10120
Reply to: 10114
Fostex F120A – the fucking disaster!
fiogf49gjkf0d

I was running the F120A for a whole day and now I can’t stress more than I did it in the subject of this post this - driver is ultimate nightmare. In full range it was just too brutal to list it and it sounded sometimes like mechanically distorted. So, was crossing it at 100Hz, at 200Hz and at 400Hz. At 650Hz it looks like the auditable paper colorations got substantially subdued. I was trying to listen it – better but still it is possible to listen it only if to remember how much I paid for this crap. The driver, regardless of the price has truly bad sound due to not even a compression but some kind of effect of “Dynamics black whole”. The damn F120A plays all sound at the same dynamics level and I would say that in the same tonal color as I see absolute impotency in color contrasts. How the hell they do it? How the hell the people who use this driver claim that it is an acceptable driver? Is anybody would like to take this piece of shit from my hands? I will got o garbage can and to find the F120A boxes if not too late and to get rid of it. I afraid to keep it in my room as more listening of it and I will take a blowtorch and will vandalize this piece of the “audiophile glory”.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-29-2009 Post does not mapped to Knowledge Tree
floobydust


currently roaming the US
Posts 62
Joined on 01-19-2009

Post #: 150
Post ID: 10121
Reply to: 10120
What to make of it?
fiogf49gjkf0d
 Hmmmm, not sure what to say in this case. From a higher view (and do correct me if I am wrong), you seem to have a general dislike for Fostex drivers. I can also sympathize that some of them are hard to listen to. In any case, you bought an expensive pair of Fostex (F120A) drivers, never listened to them, had them modified with, what could be considered a controversial technique. You then put them in a simple box without a back, drove them a (bad sounding) SS amp and spent a day with them. And you hate them. Well fair enough, your honest opinion.

 However, I don't think your pair fully resembles my (F120A) pair. A bit of history on this driver. At one point (about 2 years ago) it was rumored that Fostex had discontinued the F120A due to it's high cost and lower sales volumes (compared to the lower cost FE series). My pair was an older set from more than 2 years ago. Since that time, Madisound stock has run out at least twice. In both cases, additional quantities were ordered and Fostex had components still available and built the drivers to fill the order. The point being, that there now exists some unknowns in the F120A. The original ones were only made in Japan (not in China like most of them) and were considered as "Laboratory Series" (whatever that means). In any case, the quality of materials, machining (they actually have machined and die-cast parts, not basic stamped steel), fit and finish were far above the other cheaper Fostex drivers. For all we know, the new manufactured drivers could have been assembled by inexperienced staff, had material problems, etc.

 In any case, I can't agree with your assessment (compared to my drivers in 10 liter ported enclosures), but I can't really defend any of it as I've no idea what your pair sounds like. I would at least swap to better amplifier before binning them. I've only driven mine with SET amps.

 Regards, KM


... just because you're paranoid, it doesn't mean they're not after you ...
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