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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Albert, the Adjustable Hydraulic Dampening might be effective if the vibration of floor is the factor. This is exactly what I question as I do not feel that the floor vibration is a problem. Considering the length of the waves and the amplitude of t...
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Thanks, msaudio, for sharing your experience with Aura and Hartley. I do not have Hartleyes. I heard them I think twice but person the people did not try to get out of their playback anything that I care, so it is hard to say anything. In contrary I ...
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Very, nice thanks, ulf.
I never heard this company and it is good the more horny newcomers pop up her and there. The epoxy carbon-kevlar and glass fibers staffed with damping? I wonder how more fun would be if they staff these hollow horns with sand...
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[quote user="jessie.dazzle"]Romy, I followed his advice and currently rent four storage facilities; two on either side of the Atlantic. I think its time to consolidate, but I'll definitely let you know if I need to add a fifth. jd*[/quote]Jessie:T...
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It was as a year with a 2 major of audio events: New listening room, New Midbass horns, New ULF channel. It took almost 6 months to get any more or less reasonable sound in my new listening room, not that I was working so long on the room but rather ...
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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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Post #70:
ULF
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by
Bill
on
2011-03-10
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What I heard in your room on Saturday was superb reproduction of what was recorded from 40 Hz. up. This is ideal probably for a recording of a chamber group in a small hall without anybody present. One could hear the hall surroundings which replaced ...
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[quote user="Romy the Cat"]Scooter, I wonder how many people among those who propose those modifications do understand what they deal with when we are taking about a more or less properly reproduced sub 30Hz signal. It sounds like arrogant comment, n...
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In this case, below 50Hz, I think el`Ol is right to suggest that you consider using DSP as a permanent solution. The SMS 1 is in theory the silver bullet... You just need to find out if you can live with it long-term. Best way to find out... Plac...
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Once again, there is nothing specific in this post just some further thinking on the subject, as I keep discovering new idea.
A couple weeks back I was looking at a house that gave in inspiration to think about it. The house was 3 bedrooms Cal...
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It is difficult to say below what frequency there is no sound registered, the lowest fundamental on a double bass is 41Hz and the A0 on a grand piano is 27Hz, both these fundamentals and at least one harmonic thereof would probably be recognizab...
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Here we go, I will be telling you that I am looking or that I have found the “best” cable to use for bass channel? Sound like a stupid thing to tell you and sound like a stupid thing to read at my site. Still, I will be obnoxious enough to insist...
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[quote user="Paul S"]Romy, perhaps your ScanSpeak arrays are a +/- natural fit for mid-bass? If you used them for that you might also push them down a little until you got your ULF solution. The "nice" thing about this is, you might use something r...
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I think my dysfunctional one 15” driver in my Midbass was
for a while and THAT was something the make me to feel that I need to move
Macondo to 9-9-1 position. With the recent changes (recovery of a woofer,
recalibration of channels, EQ of the mid...
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The thing I'm fishing is not the plate amp part but the "programmable" DSP married to the Class D for ULF. I've actually heard this a lot, but never in a high-demands, home system where I could seriously "target" the implementation for a reasonable ...
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A brief search for the Barefoot Sound speakers suggests that it is very important to the designer that the speakers be compact, which (if they are actually acceptable in terms of sound) might be a boon to apartment dwellers, students, teens, etc. Fo...
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Well, I hope to find promising ULF coming from a DSP/Hypex set up. I just didn't hear it yet. As ever, I hate DIY, and I will only build my own if I have to.Best regards,Paul S...
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Romy,you have often advocated the ULF channel not having a sharp lower knee. Maybe something like the Thigpen rotary woofer with response to DC would be worth considering....
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The AE cited is said to be "designed for IB". Since one does not "use the box" or a vent, etc. to jack up IB LF, it's going to be all about moving the 250g Mms through the usual, steep, ULF filter. Maybe a notch filter or anti resonance filter at ...
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As a practitioner of vibration decoupling (stacore.pl), I second the idea. No gel, foam, rubber, etc will work on ULF as high mass + pneumatic mounts do. Pref. pneumatic damped too. I can assist with the design of the suspension. Cheers,Jarek...
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I forget if you started out by setting the phase and level(s) of your ULF with DSP to begin with. Not to cave in to herd mentality, but it might be "worth it" to rent a DSP/D (servo) amp(s) combo to play with. If nothing else, that amp has to modulat...
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Another giant attic for IB ULF! That can't have happened by chance! Am I the only one who wonders about parking the amps on the woofers?Best regards,Paul S...
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My point was simply that my interest in THs is because of the form factor, rather than any perceived sound benefits compared with traditional horns. To my way of thinking, THs are a specialized tool for a very specific application - ULF. ...
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agree 120%I have been there in both systems several times and it is an experience for life, especially the barbeque system. I am waiting the bass horn with bang Ulf. RgsSpiros...
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I do not want go for emergency ULF amps and to pay more than $50 for it, in fact all plate amps shall cost $50. I will probably end up getting another B2 amp, identical to the one that blew up with the identical changes. I just felt that this no-ampl...
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[quote user="Romy the Cat"] I would load one pair with dynamite and send to the very deserving person...I will be celebrating if I learn that this asshole got run over by a very slowly moving asphalt roller machine. [/quote]Romy, I wonder why you wou...
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....may work here as small dis-sincronizations in pumping the current should not matter at ULF.But how much God would be in 121478521785 parallel KT2318 tubes?1/121478521785?One, max two big tubes is still more appealing to me, don't ask me why.I'm t...
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I've been pushing this intellectual excersise (masturbation?) of solving Romy's constraints on a powerfull bass SE amp.Thanks to Stephie Bee the humanity have now a decent model of GU81M, so before electro-cuttingonself, one can see if the electrocut...
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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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It seem that the concensus here is that there is no tone in the ULF range, something like below 50Hz.This is probably not true for live acoustical instruments.Physical systems that can be described by non linear differential equations, are known to p...
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