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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="jp"] I assume a simple hole sealed with silicone would not suffice given the amount of pressure build up in the rear chamber? [/quote]
The pressure that builds up in right rear chamber is truly enormous.
[quote user="jessie.dazzle"]… a...
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[quote user="Romy the Cat"]Output transformer. Here is
what the thing become complicated. Of you drive ultra-low impedance with step
down transformer then your secondary turns will decrease. They primary will
have whatever they have for all case b...
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I did finish today the 2-driver extension for bass towers. I did not mount them to the default location – waiting for a “friend” to come to help me to do it. As I finish it will be exactly the same configuration that I had 7 years back in Boston.
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Hi Romy,[quote user="Romy the Cat"]Pete,
I do not think that it makes a sense to searched for “LF for use with Vitavox S2”. Do you think that there are good LF to use with Vitavox S2 and there are good LF to use with other drivers? I do not think so...
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[quote user="be"] Instead of defining the ULF range from the reproduced instruments, it is much smarter to do it based on the first resonance frequency of the listening room, because the frequency response of a closed room has a 12dB/oct rise in ...
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[quote user="Paul S"] I have been surprised that you have not already pursued the Zarathustra for your multi-driver, sealed LF. From your early descriptions of both, this seemed like a natural pairing and the most likely way to go, to keep the ...
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What the most intriguing me in the new room is where the LF
will roll off. It would be wonderful of LF will run all the way down I was in
my Boston listening room but I see very little chance of it. Most likely it
will be a shortage of gain or pow...
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Thanks, Romy, for your generous reply.
I won't try to address everything about everything, but let me bore
you with a mini-history of what is going on with my playback so you
will understand where I'm coming from and where I'm trying to ...
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[quote user="jessie.dazzle"]Upper Bass : Frequency range between 100 and 500Hz – Driver loaded into a 120Hz straight horn, driven by DSET dedicated channel. Mid Bass : Frequency range between 40 and 100Hz – Driver loaded into a 45Hz straight hor...
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[quote user="Romy the Cat"]
unicon wrote:…sealed
tube traps can be implemented the way to not absorb LF easy and just in
case the pressure gets over high and they can yet to be remain fully
customized to absorb and diffuse what you want the...
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Miab, since what I became an expert in cables? I am as much as anyone else – a subject of accidental discovering...
I do not use in Injection Channel any fancy cables. There is not a lot of need for it. The Injection Channel is mixed with M...
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This weekend wife told me that I should not do nothing else
but to fix my playback and this was exactly what I wanted to do. Yesterday I took
good 14 hours to play with it, moving boxes, trying to find a good
configuration, making measurements, th...
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[quote user="Romy the Cat"]Last night Levine and BSO played a phenomenal Mahler 5, truly great play. I had some issues with BSO sound and I probably will bring it up to them. Tonight I decided to listen the M5 broadcast for the first time and I ...
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I recently completed some upper bass horns which I'm now enjoying very much. Sadly I lack the skills of someone like Jessie so my efforts are crude in comparison, but they are working well for me which is the main thing.I already had some old frontlo...
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Romy,It is indeed an interesting subject; I am instinctively drawn to it due to the fact that the majority of orchestral instruments - the majority of my listening is orchestral/chamber/classical soloists - produce their own sound through the resonan...
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[quote user="Romy the Cat"]The biggest problem that usually people face when they listen the middbas horn is that people tend to make the middbas horns too short. In the short horn the driver shot right through the horn and the LF go not “get loaded”...
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Brain, C’mon, I was kidding about the “Electron Intensification Interface”! There is nothing in this phonocorrector then a correct selection of tubes, thier proper (well almost proper) use and selection of the specific topological decisions that sold...
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[quote user="Scott L"] the last time I checked, you were using 6each
@ 10 inch low frequency drivers per side. That's "getting there" but
still not enough to produce an acoustical watt. (which horns CAN do).[/quote]
I am not sure what you mean...
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[quote user="Jorge"]Hello Anthony,I did experiment with metal tubes for bass in a sealed configuration as you are planning. The weight of them, even made out of thinner than you would like steel, is prohibitive. If you make them out of aluminum pipe...
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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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Paul, Some good valid points... yes, they've gotten much better over the years, no doubt to technology improvements. A good example is Mallory CGS caps made in the 80's versus new ones. The newer ones are much lighter physically (same p/n), hence th...
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Dear Romy and all,
I’ve been lurking here for a few months and - after a sceptical start! - I have found this site an Invaluable Help. Many many thanks to Romy and all involved. My system is now starting to sing and make nice noises for the first ti...
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The headphone amplifiers are mystery for me. Form one perspective it should be simple but from another perspective I never heard any interestingly performing headphones amplifiers. Well, I have to take it back probably as wherever I even heard differ...
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Anthony,
I feel that 18AWG is a bit too
weak for the filaments. I usually use 12. I do not know if you allow to have
any ventilation around the 6C33C, I did. In my full range amp, I had holes around
the 6C33 panel.
http://www.goodsoundcl...
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Why not? Wilson for many years each 2-3 years updates own flagman. They had Grand Slamm’s number of revisions where they constantly change tweeters, other driver and resistors in crossovers, introducing new rounds of opportunities for the custome...
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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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As some of you know I’m playing last couple days with Red 10” Tannoys from 60s. My selection of 10” was not accidental -I would like to get as less as possible of that “Tannoy bass” but I did run very far the “Reds” turned out to have 27Hz open...
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After fantasizing about an infinite baffle, I calculated what kind of structure I'd have to build (in lieu of an attic/crawlspace) and this is an obvious no-go. A more practical idea is a sealed box with two parallel ScanSpeaks per channel. This ...
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If you think that I am not an idiot then read further. I have been looking at my Macondo calibration
check sheet above and I have that stupid itch in my brain that scream to me: “ Romy,
my God, the two drivers in own sealed enclosure at the left c...
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[quote user="Paul
S"] Shaking from ULF is another matter. [/quote]
I think if such a woofer “ignites”
shaking within the attic then all bets are off and it need to be avoided by all
cost. To do “right” thing I would put pneumatic decompiled be...
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