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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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It is good, very good. Actually I did not expect that it would be so easy and some resentful at the same time. I was running the new horn, juts single horn, listing it here and there, trying to get a precise high-pass crossover point. The 18.5uF turn...
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[quote user="Ronnie"] Listening to the horns, it seems that they indeed die somewhere below 120Hz. I was surprised, and a little disappointed that it seemed so steep. Good to hear that it's to be expected!!Yes, I'm using a 30-something-Hz 1st order h...
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Your latest post got me thinking in a sort of incomplete way about how you might locate the injection channel... If you consider tone as a harmonic of the original source, then (depending on the order of harmonic) it may in fact not be co...
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It is amassing what kind of tricks the Fundamentals Channel allows to play. Since my high-frequency Vitavox S2 driver “clicked” recently:
http://www.goodsoundclub.com/TreeItem.aspx?PostID=3592
my “Fundamental Channel” with my LF Vitavox S2 al...
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[quote user="Paul S"]Romy, no doubt the following derives wholly from my ignorance on the subject, but I have not been able to get away from a sense of "variable compression" with any compression horns I have tried. By "variable compression" I ...
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[quote user="jessie.dazzle"] Romy's comments on "axial rotation" of the horns (meaning in this case, angling the horns) has me thinking. I had planned to build in a vertical tilt adjustment for horns located near the floor and ceiling... I woul...
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[quote user="Romy the Cat"]Again, it was very interesting, but… Let agree that methodologically you did not try Placette as it performance was masked out by you need to use your Neurochrome buffer to get gain. Your chain will sound as the worst eleme...
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Well, I decided it was time to start using some "proper" interconnects between the preamp and DSET's, ordered them and had them delivered. To date I had been using cheap interconnects from the local electronic shop (literally $6) which should be ok...
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[quote user="Romy the Cat"]Get RTA and set the band-pass of acoustic pressure form the channel identical. [/quote]Yes, I need to get one! Although Bruce and my tech guy both advise that the RTA may cause more problems than it solves, ...
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A second opinion needed.
Interesting, I recently found a very-very well performing setting for my EV T350 tweeter. I changed the source for HF channel form amplifier’s output to the MF channel and now I source the HF channel AFTER the MF high-pass f...
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I just posted yeastoday the post above and have got already a few emails asking about the “new” ways that I am planning to use S2. OK, let me to explain what is going on.
The default Vitavox S2 driver comes with thier default aluminum diaphragm with...
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Sorry I'm a little late here, but anyway... here's something that may worth trying. Apologies that I can't provide a schematic at the mo - I can sort this out later if you like. In the meantime, you'll need a pen and napkin to help visualise this:The...
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[quote user="serenechaos"]Would YO 186 be appropriate to use in "fundamental" chanel? Over narrower band width, to color, "spice," "flavor" more? [/quote]It would depend how the Fundamentals Channel is used. The YO186 has phenomenal lower MF, n...
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Thanks, Paul.
My Googleised Chinese allowed me to understand that they use some kind of forced cooling but there was not mentioning of it. Upon further inspection I come across to this image:
So, the amp has two fans aside to ...
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DA wrote
"The second question has to do with how to unload the Milq from low frequency < 60hz ? How to or where to install a low pass filter ? "Correction- it should read "How to or where to installation high pass filt...
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Romy, in the contrary, it is very unfair to compare my 845 amp with the 6C33C. The main reason is the 845 amp used the best output/interstage transformer available, while the 6C33C's output xformer is pretty good but far from being best for the 6C33C...
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Chris,
I head a lot a lot of good thing about Pieter from Tribute and I would like to recruit him for the s2 transformer. We send last week to him an email and he did not reply. I heard from many other people that it is a very typical for his commu...
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OK, the amp is running for the 6C41C for a few days and it looks like the tube should be burned-in sufficiently enough for now. Still I have to note that the sound of 6C41C was not changed since my initial listening of this tube.
Originally I drove ...
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W,
Be careful with Milq’s LF channel. When you go for a dedicated LF SET and make the SET to operate very low then you need very precisely dial in the loading of your out tube with the behavior of your LF drivers/enclosure. Without know the very spe...
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OK, it took for a while but at this point I have nailed down all design aspects of the new 6-channels Super Milq, and particularly its input stage. I have listen and evaluated all solutions that will be implemented in there; selected, appraised and o...
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This is classical common mode noise interference on a common supply. This type of noise will pass right through any power conversion technology and in both directions. Due to the timing variations, I would expect it to be a little bit of mains inte...
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[quote user="Paul
S"]If you said anything about your 15" VitaVox in the video, I
must have missed it. What frequency range are you running them, and what
is low-pass filter? Given your prejudices, I suppose the cabinets are sealed,
so they can't...
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I spent many hours listening and experimenting, trying to change the signature of my mid-base channel. Everything that I'm trying suggest me that I am in at very right direction but I am still not server I would say freeze the system and do not t...
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Hi Romy,I see why you don't like the design. And in particular, the choice of where he chose to limit the frequency responses for the two channels. I see the benefit of the DSET approach in this context as you explained it. If I understand you, your ...
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Thank you for your answer.If I understand well, In purpose to do something realistic and good sounding. I should use at least 2 amplifiers (one for high frequencies and the GM-100 amp for low frequencies) with a tubes active filter at the inputs of e...
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I am using the Celestion Axi-periodic compression driver in the KLIPSCH K402 horn which I have boosted considerably when I noticed that the top one and one-half octaves were barely working when playing music so I figured WHY NOT? and it works just f...
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Mani,
I would leave the subject of DSET/horn setup for another thread and would drop a few words about Zu Druids. They are not the speakers that I would ordinary comment but since I have a local guy with Zu Druids and I had a chance to hear th...
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[quote user="unicon"]Since you added a new parameter in audio play back called : Decor I'm afraid, it may make it far too hard. [/quote]I agree but it I do not think that it would change my mind. Perhaps “décor” is not right word however; it is not...
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It might only appear that it is irrelevant subject. In reality this is the subject of my LONG DREAM… and I have almost realized it.
I spend entire days to redo the Air Conditioner system to accommodate it for my listening room. The house has a...
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Rakesh, during the last year, there were some very important moments in my own realizations about the methods of low frequency reproduction. I totally abandoned my Scanspeak bass modules and now they are resting in my garage. I intentionally have my ...
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