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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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hmm...I didn't realise I had left my browser logged-in to your site (I left my PC on over night, downloading some files).'..the only advantage that class-D amplification has is cost, size, heat generation and power.'In my eyes, that's more than I cou...
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Ok, I blamed the tweeters and MF drivers now the turn of the MF horns. The Mid Frequency Horns (I’ll them “MFH” from now and on) are the stinky like pieces of horn installations, and if they are not done correct then they screw up anything big time T...
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Being a Russian by birth and inheriting all typical for Russian masochism I sometime visit the High Efficiency Speakers Asylum, laughing me sick tail off. Between the fresks in there patting each other and the mercantile cretins who pose themselv...
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[quote user="guy sergeant"]The load lines are horrible. I can't imagine it gives a very accurate representation of what is fed into it. Maybe that's not what you are after.[/quote]It is not that I completely agree (or completely understand) the Eduar...
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[quote user="Dresden"]… One very important component I'm leaving out of the cost of the horn is amplification (the horns will be active, using class-D amps). The reason for my choosing class-D amplification is that the modules and various compo...
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I played the full system today driven from Avicenna possessor. It was interesting and in way different. The full system (Milq + digital front ends) draw 685W from Avicenna in buffer mode and 800W from the wall, so the efficiency was very good f...
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Hey Romy!Been awhile... But I been sooooo busy!Got some preliminary news to post regarding Lowthers new DX65:For many months I've been corresponding with Jon at Lowther
America regarding one of my experimental designs, integrating a
Lowther DX 55 c...
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[quote user="Paul S"] I remembered a host of "old" drivers from my past (not old at the time...) that, if memory serves, sounded rather muffled and slow, with humped response[/quote]Yes, Paul, that's exactly the way they sound in their original condi...
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When I read raves from low powered amps with such speaker designs I ask myself, is it product placement or is there a different kind of listening among Americans, Japanese, Europeans...?
I made a visit to an audiophile with Lamm LL1, ML3 and Wilson ...
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[quote user="SOS "]What about this issue of humming, this is a reoccurring theme that has not been addressed. Even my own 2000+ unit I sold to a gentleman that owned an original 2000 unit who said he would be able to figure the issue out had the humm...
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Romy,
No, the DAC was not set at maximum level (for best sound) while Cyrille listening to the system. It was set at normal volume for the whole system. When Cyrille dropped by, I was showing him the Field Coil open baffle speaker system which con...
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quote:1: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 originall...
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[quote user="Romy the Cat"]I very much do not want to sound like I am expressing sarcasm. [/quote] Romy, I don’t treat your comments like expressed sarcasm and I never did it. In my view, your site is the only place in Internet, where fruitful discus...
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Do you have the speakers as pictured already in place, or at least in the form your beautiful rendering shows? I would recommend to try a mock up of this layout in your room and not proceed with the full custom build. For example, I don't think the a...
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I do not understand from what you said the sorts of problems you are dealing with. What are you using as high and low-pass X/Os. Where and how you cross the drivers can make huge differences in the sound. Also, how did you throttle back Macando to ma...
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"High-efficiency electrostatic speakers"??? Is this not an oxymoron? My friend, Mark, who sometimes visits and posts in this form, has gigantic Sound Lab 'stats. He hates SS, and he uses VTL Wotan tube amps to drive them, 1.200W per channel, and it p...
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Wow, Romy, what a fraught time! You seem to have (somehow) focused on your sound system and narrowed things down to a tweeter, or at least some viable way to add "color". While you were talking, I was thinking that your S2s actually go pretty high, m...
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yes romy but my english is badThe JBL 2420 alnico sweet sound with my trumpet tactrix not felt the need for a tweeter, but the high was a bit behind. with the field coil at 100 volts sounds almost equal all'alnico but increasing to 130 volts, so that...
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I use a direct radiator monopole for below 650Hz, this is OK and I have it working well. I think that I want to control directivity so that I can stop floor/ceiling comb filtering which gives me problems of +/-6dB and more. Now I am using extra monop...
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I would like to add this driver to a good driver list:HiVi D10G 10" Kevlar/Paper Woofer, it is sold at parts-express.com and it was one of a few drivers that I ordered for a personal shoot-out. Ignoring the fact that it is yellow and that it makes hu...
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Yes, tapped horns are lower efficiency, mine are 105 dB (not 108 - 110 dB like the rest of the system). I don't even KNOW that SET or Class A is automatically appropriate for tapped horns... Something like op amp driven PP in class AB might even wo...
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I purchased a pair of front loaded horns with JBL e120 12" drivers. They are crossed over at 200 and 800Hz 24/octave2 pictures here:http://picasaweb.google.com/noviygera/Midbass#dimensions are of the cabs are 28" wide-20" high and 24" deep.When I ho...
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Hello first, as I am new on this site...
I have tried a number of high Gm pentode/triode tubes, including E55L and, of course, 7788. All are very linear when used as triodes, but do not bet on very low noise, if that is what you would be after. Th...
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[quote user="Markus"]I have recently been thinking about efficiency. Apart from enabling you to use low power amps, is there really any reason why high efficiency is better than low or medium efficiency, all else being equal?[/quote]Fundamentally, al...
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I could not say if/how very high speaker efficiency and/or FR limiting might effect the issue of a sort of "shuffling" of pitch/tone/harmonics as SPL and complexity shoot up and down, ie, tonal integrity versus dynamics. No amp in my experience...
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Yes, Jessie, but in case you decide to go for DSET, would it be multi-channel Melquiades or anything else, then your consideration for type and topology of the lower bass would greatly dictate requirements for your DSET. If your lower bass channels r...
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If you insist me to endorse something then this is why I make my Melquiades amplifier publicly available. Romy, I'm not seeking endorsement. Mine is the only endorsement that matters in my system. I have my own end-results in mind. ...
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I have no idea what the SD-1 motor is, but i know my woofers have it and they give me decent results. if only SS would make a high efficiency woofer with softer paper cones and double the SD magnet....Hey, what kind of crossovering is the ...
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We, the horn people, know what the compression drivers could do. The controlled dispersion, low distortions, low mechanical dependency, low magnetic anomalies, high efficiency, higher maximum dynamics and many-many more advance are well known. The te...
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Romy, when you mention "dynamic sinking" of ribbons are you speaking of sub-8k Hz use of powerful ribbons like the Water Drop compared to 109 dB efficient compression drivers, or do you notice this dynamic sinking no matter how high you cross ov...
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