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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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OK, I decided to stop today to do what I do as it does not feel like me anymore. For a month as I live in here and have the playback up my playback is a source of great pain and I do not like it. I am accustomed that I turn the thing on and USE it. ...
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Let's say we all have a midbass horn that plays down to 80Hz. I know some of us are special, so their midbass horn plays down to 40Hz. But still.What to do for the lower frequencies? Sealed or Infinite baffle (that's two good options). Now we need a ...
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I have 2nd order crossover both on the upper knee of the ob bass section and on the lower knee of the midbass section. My measurements show phase response and the summed spl is as good as it can get. Have you tried the direct servo technology or do y...
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[quote
user="noviygera"]Romy,
You make
very, very good points now I am re-evaluating this all-in-one horn concept. I
do know one thing that I learned from my current system. Midbass horn that
rolls off below 120 hz and integrated with sub is not...
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Moron it is then...Anyways, seeing the back chamber of my midbass horn, you would say that its way to big, no? And you would recommend me to proceed with a similar tuning process as you describe in this link?http://audio-db.info/AudioDB/BazaPraktiki/...
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From the time of the insertion and setting the proper crossover my midbass is growing and growing, getting larger, deeper and better in all aspects. I am not kidding and now, when I have no ULF channels operational, it is very obvious. I can’t explai...
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[quote user="green heron"] I'm happy with my results midrange on up at the moment, but I'd like more slam from the midbass horns. The backchamber may be a bit too large, so I'm planning to experiment with the cabinet volume. Do you have any su...
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[quote user="Romy the Cat"] op.9 wrote:Romy all these seems
acceptable. I hope the little cat Thomas David is doing just fine and you enjoy
growing him. moving always demands a huge amount of CPU process hope that is
done as scheduled. it's a pity...
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Tubebuilder, I am not sure what you are trying to do. According to the “Romy’s Rules” (whatever it means) people do not build Midbass horns but they build an installation that might include the Mid Bass horns. You do not need to choose a project jus...
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Hello Macman,Nice horns, I like that you finished everything properly! I am getting tired of seeing piles of horns.I think the ringing you are getting from your midbass horn is that the throat reactance is not balanced. How did you calculate the ba...
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I was listening recently my Carl Schuricht’s Bruckner and I again noted what I am been noting for a while. I feel like my Midbass horns begin to sound a bit saggy. It is not too but and the degree of change is very minor. It is not even auditable...
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I do not know the “USSR made 2A9”. My feeling is that all USSR-made driver were crap but who knows, might be three is something did exist in there. It is hard to presume that if the guy changed from dual GOTO SG146LD to basically direct radiators wit...
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[quote user="Jorge"] I need to care just one octave at my 25Hz bump,I have tried the same solution in a big room, the thing is that we not only got output at 25 hz, but a lot also at 50 hz! There was no way surgically cut it to what we needed and the...
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[quote user="haralanov"] Romy, the actual sound benefit of this 4-channel upper bass configuration, is rather in the type of sound presentation. The commonly used single upper bass horn (or direct radiator) sitting under the midrange horn, gives the ...
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First off, I forgot to mention an interesting observation: Before running the sweeps (previous post), since the drivers in the upper-bass horns are new, I decided to verify/optimize rear chamber volume (they are easily adjustable)... I wasn't expecti...
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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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I am sorry there is a mistake in my previous post, anyone who has played around with a dedicated channel for a 40 to 200 hz frequency know hat the only sound coming out is a wooo, woo, woo... Not much to do listening test by, we can measure, but te...
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Besides hornresp modeling, is there things to think about when starting design and build of midbass channel from scratch? The range I need is 60 to 300 hz. It will be used with 6db/octave crossover. It will be located under my midrange horn -- the mo...
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[quote user="Rewind"] The Fanes are the most detailed midbass speakers I have heard without a horn, but with the paper horn the detail was gone. [/quote]I am sorry you are naive. Fanes are not too detailed midbass speakers. Also, of Faned have lost w...
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Jessie, there is another solution that you might consider, that might be viewed as compromise for one-side as might not be view is compromised from other side. If to allowed ourselves to close eyes to midbass timing-integration and if the geography o...
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With Ming permission I post a fragment of his emails where he describes his midbass horn. It appears that he uses cone-drivers with ltooooooo ow Fz in non-compression application with no back chamber. Now it is obvious where he is losing his midbass ...
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...if a 50yo 8" woofer could do much more than 90dB at 50Hz with anything approaching 'ease'. Remedies in this configuration are a lot like small 2-way standmounts in that we are trying to get a lot of bass output from something small and excursion ...
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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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Of cause I can pull the midbass to over the carpet and I can tuck more rug under the couch but I have completely different things to negotiate now and completely different objectives to follow. Tucking more rug under the couch would not work as “rug ...
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[quote user="TonyB"]Romy, what are horn flare frequencies of your horns? I understand that both are Tractrix. My guess is that the midbass is 125Hz with a sealed rear chamber and 4" throat. Correct? [/quote]They tunes for 115Hz and pushed in room dow...
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If you look that Jeffrey Jackson’s midbass horn then you can see two pillows stuck into the horns belly. Let presume that the pillows were placed there in purpose. So, here is homework for people who would like to flux their horny mussels: what is t...
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it would be nice if somebody who knows a thing or two about mathlab and pspice would develop a accurate model. in pspice one could include the crossover in the simulations....when i tried your recommendation with s2 and 3uF cap my "basshorn" ref...
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When you get a horn that will work i will trade for a couple weeks!I don't think wide band drivers are the ideal way to do things but the most cost effective way to injoy good sound i would like to make another pair to crossover from 3k to 10k.some...
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The room is beautiful, and I love the tree stump "rack" with the amps, it is clearly a work in progress, but they already put in the "Western Electric" badges on! It talks a lot about their priorities I guess!They have what seems to be a midrange ...
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Thanks Romy,I was hoping to hear that you remain happy with your midbass solution and was surprised at the time about the small cabinets that you used for the Vitavox 15"ers, but having measured T/S parameters of the drivers here I can see that indee...
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