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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hello, Ulf, and Happy New Year. Slightly OT, I realize, but have you tried at all to optimize the L Cao driver as a direct radiator, and disregarding LF? Do you have any impressions of this driver above 300 - 400 Hz and below 4.5 - 6k Hz, with respec...
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Well, I remember being "astounded" years ago by Crown's "DC" amps' LF capabilities with an ever-widening range of LF "tasks". More recently, I was "impressed" by plate-amp-driven subs at THE show. I haven't gotten to ULF with my system yet, but I p...
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We refer to playback singularly as an audio event as we have recorded sound waves with acoustic devices (microphones) and play them back through other acoustic devices (speakers/headphones). The basic rules of stereo are generally adhered to (phase a...
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I would try reducing the level of lowest channel or only play left or right side (if stereo ULF). Then run your experiment again.
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Bill, I am happy that you've improved your bass. As Romy mentioned in an earlier post about Bruckner, RTA is just one tool, and we have to listen and hear results with Music we know and love. When you told of the disappearing S2s, I was going to ment...
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I guess it’s time to talk about these amps in terms of The
Loudspeakers. In truth, I thought of these amps from the first time I thought
about The Loudspeakers, to the point where I “built and tested” The
Loudspeakers with these amps in my hea...
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Hi Amir,we must be careful when talking about limits. We need much more than we think. This is because instruments interact. One instrument playing 440Hz (A) and another playing 465Hz (Bb) create a difference tone of 25Hz. Depending on the intensity ...
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Sure, we can "overcome" the "sonic obstacles" and wind up in Audio Heaven, and there seems to be any number of ways this can happen. I really wish I knew how to make this continuous! Of course, many experienced people have sung the praises of Dr. Gaw...
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Since I last posted there has been some progress to my indoor and my outdoor systems. Indoors I have added a pair of tapped subs. I must say that I am quite happy with these. Of course they are not as good as full size front loaded horns but still a ...
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That attic is a lot of space to perhaps return to a midbass horn, should you be so inclined.Is the IB ULF run from DSET or a separate amplifier?...
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[quote user="Paul S"]
I guess it’s time to talk about these amps in terms of The
Loudspeakers. In truth, I thought of these amps from the first time I thought
about The Loudspeakers, to the point where I “built and tested” The
Loudspeakers with...
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“A large room, open to the
stairs, maybe a dozen watts to play with” that was exactly my concern from
beginning. Of cause I could employ a more powerful amps from bottom but it my
case it would be under 100Hz and it would be a big white flag. So, ...
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A few months ago, in May of last year in the thread about Listening Rooms and Composers and How to play Bruckner Sound on Audio I have complained that my room is not what I was looking for as I was hoping to have Bruckner Room but I need up with...
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A friend of my after reading my comments about the EdgarHorn installation in Vegas (in here) asked me why do I think the bass in Bruce’s room behave as it behaved. I tried to think about it. Some of those thoughts intersect with some other projects t...
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its still expensive, but birch-plywood is not that much cheaper. its around 30-40 €/sqm. the only experience i have with a carbon-foam composite is from making a skateboard for my gf´s son. looks very good, but whats more important, ab...
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Referencing the post from my “Playback Listing” forum:
http://www.goodsoundclub.com/Forums/ShowPost.aspx?PostID=7412
I would like to make an interesting announcement. T is high possible that Macondo soon will have another, the 7the channel. Now it ...
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One advantage of the use of a phase plug in a midbass horn is that it will beam less at higher frequenzies than a horn without phase plug. If the phase plug is designed for the specific horn and driver it will help "steer" the HF.
Me and a friend ...
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Hello, Ulf.
Interesting. The TAD1201H is 12-incher with resonant frequency of 50Hz. It has relatively low resonant frequency for 100Hz Tractrix midbass but you most like used 10” thought and consequentially shorter horn. The shorter horns beam...
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Dear Romy,
well the horns are actually not designed for HF. The intended working range is up to 5-700. But since we use low Q, only second order filters we want to have a rather large overlap in the crossover region and a fairly even pattern over ...
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Dear Romy,OK, some more about the midbass.Well, it was not really a surprise to us that the horn without the phase plug was dissapointing. Without the plug we had a horn that was a bit too short, had too large front cavity and less compression than w...
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There is a fusion in contemporary turntables: to make platters and tonearm bases separated. I am not an expert but in my ignorant common sense I do not think I like it. For instants take a look at a German table:
http://www.montegiro.de/...
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Thanks, Rakesh. It might be a good driver, I always like Scan Speaks.
A few things. The Scan Speak nowadays is not Scan Speak anymore, just a name and they made by someone else. Also, I would like different type of drivers. I would like 18-24 ...
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[quote user="unicon"]Since you added a new parameter in audio play back called : Decor I'm afraid, it may make it far too hard. [/quote]I agree but it I do not think that it would change my mind. Perhaps “décor” is not right word however; it is not...
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Hi Jessie:It is indeed a (t)horny dilemna whether to get rid of the midbass horns now, with a view to starting all over again and customise the new horns for your eventual new home in Detroit or ship them at unfortunately what will be a very substant...
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Romy, Selling the heavy stuff would be smart... Wait a minute; its all heavy. The ULF modules would be fairly easy to recreate; in any case, I want to redo the enclosures using different materials, so this part of it makes sense to me. I'm not ent...
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Got the ultra low DCR toroids coil and pit them in use. Yes, it was very right move and they a bit trimmed the midbass tail. Playing with inductance and listening how the midbass decays (measurements are worthless in this case) I ended up with 4.8mH ...
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Excellent news regarding this morning's discoveries. jd wrote:"...Are you able to say whether the problem is due to the horn position relative to the room, or to throat diameter relative to the driver diameter?..."Yes, a stupidly phrased question, bu...
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2011 will be a busy audio year for me. I will have a nice large space 28 feet x 20 feet x 11 feet which I am free to modify for audio. The walls are 150 years old irregular stone the floor is cement and the ceiling is composed of structural...
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What you guys are missing is a grand scale of the concept. You are talking about voltages, implementation, electric chairs and the rest of irrelevant crap but I am talking about the pure inspiration from the concept. No one runs to solder anything. I...
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This year is the first winter that I live with this new listening room. Last winter the playback was up and I still was playing with minor arrangements of my ULF channels, cable and a few other things. For many months I do pretty much nothing with my...
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