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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Okay... I also downloaded the original Milq SET amplifier PDF and have looked at it in detail as well as the 6-channel adaptation (DSET) and I understand where you're going with it... or so I think. In my particular situation, I've owned two pair of ...
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[quote user="Romy the Cat"]I always was “concerned” about those large high voltage triodes: 211, 845, GM70…. They kind of different… The 845 always was brutal and not elegant, 210 was elegant but not sophisticated, and the GM70 was sophisticate...
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[quote user="Romy the Cat"]
This weekend I discover interesting phenomena on which I did not pay attention before. The Montrealian Charles Dutoit conducted this weekend Boston symphony. I was listening the broadcast, recording it as usually. It was ...
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Now that the preliminary excitement of my ingenious idea wore off, I'm ready to share it and accept the harsh reality of any shortcomings... but seriously.
For a while now, I've been been working on optimally integrating my 3 channel...
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One of the challenges I see for my midbass horns is to minimize hf output. The goal is to operate the horn in a bandwidth where it can cross to the higher horns, and have each horn function in their best sounding manner. My drivers are Altec 515-16...
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[quote user="twogoodears"]…. they seem to operate in a very specialized narrow bandwidth... So, my (humble) advice - based on my direct experience - would be: if the case, try to use Goto as 4 ways, not the more common 3 ways... also if Tanaka-san is...
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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="floobydust"] Integrating multiple amplifier sections and drivers is always a challenge. Doing it with different topologies and OPTs adds some additional complexity due to the difference in response characteristics. Crossover design...
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I really do not what is gong on there and why. Thorsten's comment that line-level crossovers do not act like speakers’ level crossover confirms what I feel and what some other people suggested me. Yes, the reactance of the crossover component, the in...
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Ha! Maybe I can help. I lived in Tokyo for a few years and tried to find the "perfect" commuting earbuds. Tokyo's "Best Buy" type electronics stores are huge and typically stock 100s of different models. There are also two large headphone specialty s...
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I do not mean to be negative and criticize Romy, but he is wrong on surround sound. It is the implementation and not the concept which should cause vomiting, like with the vast majority of two track recording which are unlistenable. With the rig...
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Hello,
I've never had an SET amplifier in my system. Having high efficiency horns (106 db on average down to 100Hz ) I have tried a number of solid state and tube amplifiers, and I am aware of their sound in my system. ...
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[quote user="Bill"] If you are going to build such a huge cabinet or put a hole in the floor to use the basement as a chamber, why not just build horns in the basement with a straight 8-10 foot section in the basement with the back chamber re...
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Keith,
Thanks, I do not see any needs to discuss anything with Ralph – I am not a prospective buyer and what I had interest personally about Gammas I have already understood. It does look like those Cessaros people took horns eventually seriou...
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[quote user="de charlus"]Ok, understood, at least somewhat. Are you suggesting that the S2 operates at the frequencies between 1000hz and 3.6khz? I am not insisting upon using the driver at the frequencies that I was initially suggesting; far fro...
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Why not? Wilson for many years each 2-3 years updates own flagman. They had Grand Slamm’s number of revisions where they constantly change tweeters, other driver and resistors in crossovers, introducing new rounds of opportunities for the custome...
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[quote user="MINGSU"] If you look behind the physical time alignment and start discussion about relative time alignment, that is a good start.
…How will you know they are not already in relative time-aligned even most of them are not shown a...
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[quote user="kodomo"]Hey Anthony,Your project is going on track (and looks like a very good track)! Just a reminder about the room acoustics. You are talking about bass frequencies which are as dependent to the room as the speaker! Before installing...
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[quote user="kodomo"]Great project! I have a similar project going on. Your frame ideas are looking beautiful, however I decided to take a more utilitarian road. I can adjust all my channels in horizontal or vertical axis. I am finishing my crossover...
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The “speedysteve” converted his acoustic system to something more reflecting sensible design:
http://www.hifiwigwam.com/showthread.php?54198-5-Way-horn-project-big-boy-system!&p=1159200&viewfull=1#post1159200
As the result...
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Quotes from Romy in blue: "...Anyhow, I do not know at which stage your project is what I think you are somewhere in a process of integrating the drivers..."I would like to stabilize the system, and listen to the existing horns, while ...
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[quote user="Romy the Cat"]
haralanov wrote:Just a short example: the horns with round mouth have the worst possible performance in terms of sound complexity and they are champions in achieving the so called “open, but closed within itself” type of...
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This weekend I discover interesting phenomena on which I did not pay attention before. The Montrealian Charles Dutoit conducted this weekend Boston symphony. I was listening the broadcast, recording it as usually. It was very bad. The BSO wind sectio...
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Deciding for horns is actually very easy. Why:1) in the common sense range for each horn/driver they have far LESS distortion than any standard dynamic driver covering the same bandwidth. I define distortion as frequencies not originally in the recor...
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Adrian,
This it truly complicated question. The Titans’ upperbass (the better one, curved, with 12” driver) is not realty HF capable and it makes a MF driver need to go all the way down to probably 500Hz (I do not know what Bruce dies in the crossov...
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[quote user="stuck.wilson"]In this thread, you previously said--
12) If a filter requires a phase inversion then it is preferable to flood crossover point with amplitude and do not invert phase.
What exactly do you mean by this and how's it work?[/...
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With regards to the links, as it happens, I totally agree that 15in Tannoy Reds struggle to handle complex music. The crossover is too simplistic and the cones too hard to control with a low power amp. Reds can be lovely in a simple vintage system bu...
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Prior to three days ago, i was almost ready to give up on the Dannoy's as I couldn't get close to the sound heard at Romy's with his setup of the same speakers. Then i was able to add my newly obtained Yamaha B2 amps, and was once m...
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[quote user="be"] Instead of defining the ULF range from the reproduced instruments, it is much smarter to do it based on the first resonance frequency of the listening room, because the frequency response of a closed room has a 12dB/oct rise in ...
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[quote user="slack key"] As for audio problems, you are correct, I really have to sit back and think about what to do. Sure I want to improve what is now lacking.... soundstage, imaging and depth. As for the sound, of course, I like the sound o...
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