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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="jessie.dazzle"]You might find that you don't need that much power.When I first built the ULF channels I assumed they would require loads of power, so I bought a single, mono, 1KW class D amp to use in testing. Then I tried driving them w...
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[quote user="Romy the Cat"]Another this the I at this point has no idea why in my use
of ULF channels. I mean I do not use it as it does not sound right. This is strange
because it is VERY same ULD that I had before and that worked very well in my
...
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Thanks for responding. You mention a rotary phase knob. Is this ULF system connected through a digital processor? If yes, will you expand on DSP effects on sound and system integration with the DSP? Many "pros" use these filters to "handle" speak...
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Great analyses, David, thanks. I can’t concur as now with anything. Macondo in the room with midbass horn was a complex installation and with ULF it became even more complex. Some of the things I setup by ear and do not use measurements, I just know ...
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The 185+W into 1 Ohm is not a lot indeed but I do not understand all of those simulations and I do not know how the distortions of simulations affect the actual results. N-set, when you are mentioned the “Romy's constraints on a powerful bass SE amp”...
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[quote user="anthony"]I seem to
remember you had this sort of issue when setting up your previous room and
eventually you moved them time aligned.
The one stack of 15" and 10" sounds
like a nice solution. Do you think more 10" scanspeak instead ...
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I seem to remember that we've covered somewhere the sonic benefits of SET at lower frequencies, but I guess I never really thought of ULF as "bass", per se. If someone ever comes up with an SET that can be an effective part of an AuraSound circuit, ...
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I am finishing us to setup my listening room and I have my PP2000 blowing up sometimes (go to protection bypass mode) when I use powerful SS amp for ULF along with Melquiades and the rest of the systems driver from one single PP2000. So, I guess I wo...
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Hm, your advice to discard the Midbass time alignment and to
go to ULF time delay to catch up with Midbass timing is very interesting. Theoretically
I have no auditable sound from ULF. They are at 20Hz. As you understand there
is no way to align t...
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I did not make my mind about it but I have some “concerns”. Using SS amps and hearing different SS amps I do not like their bass and the notion of a powerful enough DSET to be able to drive ULF in A1 was born. Sounds logical. However, recently I ...
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[quote user="noviygera"]I thought I'd let you know that I ordered four of those Aura subs. Thanks for the advice, if I receive them (I hope so), I will install them into my new listening room. This will take a while because I still have a few mon...
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I has been thinking the whole evening about the subject of
the ULF hardness I was experiencing today and here is my leading hypothesis. I always
was pitching that a sharp order filter is a barbaric thing to do, particularly
at LF. Still, here I am...
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I truly enjoy reading the different internet audio idiots expressing their “wisdom” about what I do. There is a site out there filed with typical audio white trash and they suddenly developed a desire to criticize my admiration of FM based upon ...
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Since my B2 ULF power amp will be long time to fix then being a compulsive person fully suffering from Dostoevsky Complex I bought another B2 amp to keep the blood flooding in my playback. Surprisingly it was no my decision but I got advise from ...
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It looks to me that I will be able to live with my 6 driver
line array. Again no measurements were made but it is what it “looks”. Sound-wise it is very reputable and I just might
leave it as is. My current room is 6 larger to what I had in downto...
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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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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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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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The ideal horn system would have to be well integrated into the room, acoustically as well as optically/cosmetically. As far as a commercial venture goes, I believe that Marc Henrys "La Grand Castine" was already (except for the ULF dipole panel) ver...
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[quote user="Romy the Cat"]fiogf49gjkf0dI am observing an interesting and surprising fact – I am begging to like my active Marchand crossover. I did a number of modifications to it and it looks like the parts are broken-in now – it does sound very pl...
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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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A guy visited me today and while I was playing to him some music an ides stroke me: how to make ULF channels invisible? I have given birth to a ridicules ides to make huge, 40hz, no-cheating horns in time-aligned position absolutely invisible in list...
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I am observing an interesting and surprising fact – I am begging to like my active Marchand crossover. I did a number of modifications to it and it looks like the parts are broken-in now – it does sound very pleasant for my ULF. I feel it is a bit to...
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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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This is kind of funny. I got another B2 amp a few days back. It was near new condition, at least inside. As I plug it to drive my ULF I felt that it produces some kind of strange bass. I did not like it at all and it was very different then what ...
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I have set up the right channel. Not calibrated but juts connected everything and did initial phasing. God! I have missed that feeling and I did not have it for a month! I know all of those conversation about having fun from a table radio – that all ...
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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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Vincent Brient is French guy who has built an interesting installation that I think worth to analyze. Years back Vincent was an enthusiast, like normal people, but it looks recently he turned “pro” and came to audio market with his own version of...
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There is site out dedicated it infinite baffles subwoofers. I am not sure how serious they are as they use mostly metal in rubber drivers as got thrilled when “Apollo 13 takeoff, my doors move back and forth 1/2", and the frequency is below 5 hz...
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