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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Actually it is very possible that it might be so. I made some rudimental measurements and concluded that RAAL tweeter and JBL midrange mounted in the same baffle has non-perfect time aliment. So, I will need to use gaskets under the drivers to time-a...
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[quote user="Romy the Cat"] Currently I have Jack Elliano’s made 450mA, large, single section LF transformer that begin to roll somewhere around 800Hz. The transformer ha s a lot of core mass and at full Melquiades’ LF power (~20W) it begins to clip ...
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OK, MiniMe now is up and running. It does what it does and I wonder if it can do better then what it does. The LF sections need to have ports fine-tuned but I do not particularly care about bass now. What I do care is MiniMe to have a certain quality...
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[quote user="Romy the Cat"] I bought a few Linn Records own recordings of Duisburg Philharmonic Orchestra, Scottish Chamber Orchestra and Dunedin Consort. They pushed them as “Studio Master” but they are WMA files – means the re-rendered compress...
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[quote user="Wojtek"]but I attached a double layer of 3'x5' cement boards (wonder board) under the suspended floor (crawl space) and it seems to help with bass a little. It's a cheap and fairly easy solution ($9 for a board) if you have an acces ...
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[quote user="anthony"]This is excellent
information Romy. I have been worried about crossing the woofers at 100Hz
and would be much happier if I was able to cross them lower. We will see
how everything integrates into the room and if I do need t...
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Actually, when the string section has to play ultra softly, they use a mute or damper on the bridge. This is a device that limits the ability of the bridge to pass the string vibration to the resonant body of the instrument. http://www.youtube.com/wa...
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Greg, I see a regions of concerns that you might contemplate.
TAD 1201 might be good driver but how useable would be the 200/300-800/1000 range? Let pretend that you end up with 250Hz, then what next? You will introduce a bottom octave section but t...
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[quote user="AnonymousUser"] Line level crossing or passive speaker level crossovers-same devil. [/quote]
If you are planning to build a dedicated LF SET then the line level crossing vs. passive speaker level crossovers is not the same devil. With a...
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[quote user="serenechaos"] on 3) & 4): Dave Slagle, Intact Audio, knows a LOT more about transformers than I do, and the nickle autoformers I got from him work so well, I totally trust his (and/or Jeffrey Jackson's) judgment to over my "guess...
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[quote user="Romy the Cat"] There were some educational for myself observations made, in some way saying something about this specific DHT, in some way saying something about Melquiades’ single stage version and the Melquiades’ full-range two-stages ...
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[quote user="Paul S"]Probably not news, but: http://www.supravox.fr/anglais/haut_parleurs/135_LB.htm Another one that at least looks the part.[/quote] Thanks, Paul. This Supravox 135 LB indeed looks like an interring driver for a project of mine. I h...
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Thank you Romy, that was very informative and instructive!I don't completely agree that OP is absolutely irrelevant for linearity.It can happen that some regions, under given design constraints, will not give "a proposer harmonic structure of
your s...
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Romy wrote:While the aftermath of the midbass horn project is not over I am strategizing how I might implement Macondo’s LF section. The leading idea is to bolt a triangular shape sealed enclosure juts behind the small wall that cover the load be...
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[quote user="Romy the Cat"]Tax what are you willing to accomplish by DSETing Avantgarde Duo? As far as I can see in any playback action and decisions it shall be a straight line of sight to some kind of objectives. What objective you have in your min...
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A site visitor pointed me out the I never made an intended write up about the David Haigner horns. I just forgot about them… OK, let analyze David’s claims and his Alphahorn design. I would say right the way that I do not like the Alphahorn’s id...
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But here it is. I made this monoblock fit into less than a square foot. It is tight. I use Hammond iron throughout. Their stuff usually works pretty good for power supplies. I have some photos at my blog. [img]http...
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This Sakuma’s is kind of BS. What I mean is that it has the appeal to be “good thinking” but only in the realm of marketing hype, something that the editor of “Direct Heating” had created around Sakuma. The reality is that the Sakuma’s TWO channel Am...
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I had today a long listening session. I listened a whole Mahler Second and I can tell you that I was the best upperbass I ever heard from a playback. I am not kidding. The upperbass literally despaired in the new room but what it is being called up...
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Yes, if you are at 40Hz first order then you are with regular dedicated LF channel and tone is certainly a subject. The entire definition of ULF channel inkstand or LF channel is that ULF channel has no tonal information. It is very same like use twe...
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[quote
user="anthony"]....but....sometimes I do wish for a less
"white" sound up top. More colour, or perhaps contrast, not
that anybody could ever accuse my sound as lacking any of those things. [/quote] Ironically it is exactly
what you get...
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[quote user="drdna"]I find the sound of my horn loudspeakers very satisfying, and by the way I have the EdgarHorn Titans, which may make you chuckle if you are a horn snob, but I think they do a very good job, one of the best commercially available h...
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[quote user="Scott
L"]IMO A 60Hz attempt is too low and a 120Hz attempt too high. This
is a difficult task, that of properly integrating horn loaded mid-bass with
D.R subs.
What type
and slope...
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Thanks, miab
I am encouraged that your guys feel that it is doable. I was cowling in the attic and had very bad feeling. The beams (you call them trusses) are VERY thick and the attic is not a full waking. The house has center AC and my red tr...
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MoreartDouble-driver "back horns"? I am not sure what you are asking about, or what exactly you are promoting, but I do not agree with lightweight, square-section horns, because I have never heard one that worked, apart from shifting certain frequen...
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[quote user="morricab"]…. putting the attenuator AFTER the gain stage has negative consequences for the sound….[/quote]
Well, yes and no. In the new 6 channels version of Super Milq I will be use 2 stepped attenuators: for Injection Channel and for ...
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[quote user="op.9"]A 20w tripath and a 5w El84 set per channel is a sensible and cheap combination. The tripath and line level crossover section could be thrown in for free![/quote]
Ah, the EL84! That brings so many memories…. I was 9-10 years old a...
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I wrote about it before and I was/am afraid this effect too. I discovered it a few years back when suddenly my bass picked some odd harmonics. After a few days I realized that the harmonics came from an acoustic guitar that was sitting in my list...
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[quote user="Chirag"]Outside of the already constructed bass towers, is there a reason you are looking exclusively for 10" drivers? I have heard a pair of stacked 15" Lambda's on each side supplementing/providing bass to lower midbass under som...
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Hi, Global.
Leaving aside the unnecessary to be called notion of Melquiades vs. Lamm I would return to the essence of the thread: what changes are necessary in schematic if it goes for 220V. I do not think that any changes would be necessary. All tr...
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