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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy wrote: "...I still do not know why you have weakness in 80-160Hz octave. Your upperbass shall cover it perfectly fine..."The last time I measured the upper-bass horn, it started tailing off just below the horn's physical cutoff (115Hz); lets see...
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Romy wrote:"...The leading idea is to bolt a triangular shape sealed enclosure juts behind the small wall that cover the load bearing beam from the midbass horns..."For a lot of reasons, I'd vote for an alternate placement. You've got that baseme...
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Romy, Our bass driver has a 12v field coil motor, it developes just over 20 kilogauss flux density using a low carbon steel pole piece. The exit diameter is 4 inches at the moment. The diaphragm is 6 inches in diameter and mad...
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Yes, decoud, the 6e5p-GM70 is an easy amp but 6e5p is a hell of voltage driver and I do not feel that a single 6e5p will be able to drive GM70 into grid currents. If people use dead speakers and need a lot of power than use the ability of direct hea...
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Forgot to elaborate the Quad system.It is actually a tri-amp Quad system, below 100Hz is the Supravox 15in Field coil in open baffle, then it's a Stacked Quad ,and about 5Khz there were 5 RTR ESL cell. I did try the 6C33C amp in a single pair Quad by...
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Mouth size is the one dimension I've struggled with most.As of the present time, I've deduced to use a mouth size that may prevent me from achieving the target frequency of 40Hz, and instead produce a frequency of about 55Hz or even 60Hz. I can...
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Romy notes:[quote]The Lamm ML3 with it’s (looks like) composite driver stage might most likly to pump a lot of current and it would be so rational to put in there a second GM70 on the same chassis with own transformer, driving it from the same driver...
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All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
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[quote user="ml8"]So sometimes i just wonder why do you need 6C33C at all, with your high-sensitive speakers.[/quote]Actually it would be VERY interesting to expend on it sometimes… Why the Supper Melquiades could not be juts one powerful 2-stafes LF...
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Rakesh, I moved your post to this thread as I feel it is more relevant here, I hope you do not mind. You ask yours the very same question that I ask myself. I do not have definitive answers to them:
[quote user="oxric"] I am presently consider...
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[quote user="haralanov"]Romy, the main driver in this acoustic system has nothing to do with the funny Lowthers. It is very high class field coil speaker unit made by Oleg Rullit. The owner of the system has tried the highest class of the Feastrex li...
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Here's a pic (link) of my listening position.When I built my large Bill Fitzmaurice bass horn...I had thought about placing it in that space above the speakers, firing into the corner. I may still do that...but the sub is serving duties in the separa...
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Thanks RomyI appreciate your advice re non single bass horn.When you say, 'good luck with a smooth response from 25Hz,'...does that mean it's not possible to get a smooth response...or, it's not so important to get a smooth response...?A friend sim'd...
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Joe,
Since this topic is about a particular single driver speaker, but still a monodrive, let me ask you a question.
One of the fundamental shortcomings of the not-so-wide-range single-driver class is, as you know, a not so wide frequency range...
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I have been asked by a number people who monitored my progress with RAAL’s “Water Drop” tweeter: “Romy was it worth it?” Well, I think after a year of leaving with tweeter, learning and satisfying it’s little habits I might pass some generalizing obs...
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Romy,I took your advice and now have a single 2440 driver. At least i THINK its a 2440. On opening it i find that it has a phenolic diaphragm! Have I been sold something else? I was not aware that there were ever any phenolics for the 2440 family. Wa...
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[quote user="haralanov"] Take a look at the video: [/quote]I am not sure why you keep bringing the Vengerov’s video again and again. It is quite banal things and those infomercials of Vengerov educating in front of camera the sentimental girls ho...
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I am of course guessing, as to how you got the sound the way you describe it. This "off-set" might be pleasantly less then what I had in mind. It initially reminded me of an effect by having no impedance correction (Zobel) in a midrange driver, and o...
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[quote user="noviygera"]p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about low and medium listeni...
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The powerful PassLabs are incredibly bad amps and Mr. Pass well knows it. PassLabs has a series of very low power, SS, class A, single-ended amp and they might be interesting. I personally never had them and I do not extend a lot of trustworthiness t...
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Another decision that I need to make about the new Super Milq. I have MF and Fundamental Channels around the Vitavox S2 drivers that will be driven directly from the single-stage amplifiers, with the crossovers and attenuators sitting at amplifier li...
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A buddy tried for fun something that came to our mind. Extending the front. He put a quartersqare on the flat face. By that you smoothly extend and connect both mouth ends left and right. You can also use a half circle with 80cm diameter.In combinati...
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How many times have we heard the mantra, speakers/amps/room? Over the past few months I have listened to many non-musical private and salon installations, amazed that the owners have in every case seemed generally happy with the sound from their exp...
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You are in a position now that I have never been in: with plenty of "FR" gain, able to home in on exactly the "wide band" sound you want, with no real need at all for FR.Who could resist trying the old 45 or 50 in this situation? Lose (or loosen up)...
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Hello again, Romy.. let me see if I can clear some of this up....
first, you are indeed correct on your horn thoughts.. but some clarification is in order...
Ming Su is the importer of GOTO to the USA... Goto Japan only ships horns from flar...
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Looking at what was presented in Munich High End 2018 I found
one company that picked my interest. It is Jo Sound. I think they are in UK.
There are two comments the I would like to make. The
demonstrated B3 loudspeaker that I find is spe...
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I got a forwarded email today containing the Lamm Industry’s release notes about their new SET amplifiers.
http://www.GoodSoundClub.com/PDF/LammML3.pdf The good thing in this is that Vladimir is still Vladimir and he did changed since the Rich ...
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This subject of digital crossovers became quite popular during last few years and many audio-people give up and go for a simplicity and painlessness of digital crossovering. There is an army of people out there who would swear by a complete transpare...
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A few days back I got a hold of an article in some kind of French publication and a site reader helped me to translate it. In the article Klaus and Reinhard reported that Arthur Benade’s helped them better understand the propagation of sound in h...
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It is not surprising that the subject of horn is as screwed as the subject of drivers. It is understandable as driver must be made for specific horn loading, not one make drivers properly, so what the horns are made for?
A horn is a very simple dev...
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