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That posting bug has been addressed.
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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Forgive my complete ignorance in the speaker design, but if Edgar is right and the passive radiator has to be the last one, why not adding a sub with a passive? A sub with the same 8565 as a passive?
I hear you re the injection,...
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My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
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I will wait for the Quantum version of that...Seriously, that thing (and the explanation) seem something people saw as the future in 50's.Synergistic Research was already working around those kind of enchantment products for while, but they are still...
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I was reading the Stefano Bertoncello's post about his new multi-amping again options.
http://twogoodears.blogspot.com/2010/09/multi-amping-again.html
.. and I feel that it would be a good idea to brief summarize multi-amping cros...
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Of course most of the people do prototyping the type of crossover they need for a given channel using active crossovers. As the crossover point, slop and in some cases Q are found then the same data is applied to a given topology of line level in-de...
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I absolutely remember posting about A vey special "vintage" EQ a while back, perhaps in the context of LF; but I can't remember more than that.IMO, the 1st order of business is to avoid the effing "DSP". Let someone else get it right ONCE, then ...
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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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I have had a Placette Active for some 5 years now and it was quite a revelation when I put it in my system. According to Guy Hamel one of its most important features is its powerful op-amp output stage with an output impedance of 10 ohms. Since I hav...
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[quote user="drdna"] Well, I think the short answer is yes.
What the people over at Technical Support have told me is that this is due to the power supply design of the amplifiers that are being driven by the PP2000 and that it seems to be cha...
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Hey, look what I found: 3’5” passive radiator with 30Hz own primary resonance! That is what doctor ordered!
http://www.tymphany.com/830878
Not to mention that this beauty costs $12!
The Cat...
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Preferring transformers to resistors.
Brian....
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Alex,
yes, the passive linestages (resistors) tend to be more transparent then active stages but it is only in the case when a passive line stage (attenuator) sits right next to the grid of your input tube. As long as a passive linestage b...
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Hi Romy and other fellow audiophiles, what is your experience with passive transformer based preamps? Is this the ultimate way to get a perfect variable gain? Or do you prefer to use an active preamp?Chris ...
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Hi,
[quote user="dazzdax"]Hi Romy and other fellow audiophiles, what is your experience with passive transformer based preamps?[/quote]I have yet to find anything better. If using active try using a TVC as volume control, it takes the active preamp ...
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Is there any abstract value to going for a preamp with a stronger output if you're using a passive xo at line level?I'd prefer to answer this question myself but i really don't have the budget to be swapping amps.How does a PLLXO interact with a non-...
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Well, if you do not have anything user 35Hz and have low sensitivety then the passive might do. Still in future, when you feel comfortable with your passive unit you might for the sake of self-education try an following experiment: Guy Hummel use to ...
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Anthony, congrats on your amazing progress! I know how hard it is to carve out time for this stuff! I see you are looking for gain from your pre-amp, which makes me wonder if you have been using the passive Placette, as opposed to the active unit, wh...
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[quote user="Romy the Cat"]
I do not want to go on tangent in this Cessaro Gammas thread, still what Merlin said deserves very much to be accented. I juts mention it once in here.
The first order on the bass units is NOT an “unacceptable compromise...
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Yes first order passive .Drop him an email, http://www.cessaro-horn-acoustics.com/kontakt.html...
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I'm giving myself high fives today for nearly solving the broken piano sound in the room. :-)I'm not sure what fixed it, but I believe it to be a shelf half filled with records + two sofas and a carpet.There is room for improvement but it is a g...
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Paul, l I have written about it somewhere: the passive speaker-level crossovers on bass channels are no good. Marko has 250Hz that with 3rd order would be around 10mH and 2mH. With air core then would be very large coils with huge amount of DCR – ver...
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And there is no substitute for listening to it, no matter how careful the "calculations". Anyway, I don't have it "figured out", that's for sure. Some guys figure in and use the inductor DCR in lieu of resistors (apropos), which seems clev...
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Very interesting discussion. I have taken a close look at Marco's horns and am thinking about using them in a horn installation. I plan to use the TAD 4003 from, say, 1 to 8 kHz, and a tweeter above that. I would love to use horns below 1 kHz but wil...
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Paul the UK Accurion distributor was kind enough to bring a P4 same internally as their 'Silencer' he also bought some accelerometers , we were able to measure the turntable directly on its usual isolation shelf, (GPA Monaco) and then on the active...
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An interesting guy. I would love to discuss with him a few points, not that he prolamins anything (unfortunately) but I would certainly can bring some complex questions to the table that make his presentation more applied...
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[quote user="floobydust"] Integrating multiple amplifier sections and drivers is always a challenge. Doing it with different topologies and OPTs adds some additional complexity due to the difference in response characteristics. Crossover design...
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[quote user="Romy the Cat"]The line-level crossovers work against fixed impedance and therefore the crossover point and the time alignment does not fluctuate along with reactance of the drivers.[/quote]Okay, maybe this is a dumb question, but why wou...
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If you do not like digital volume by Weiss there is always the passive alternative: http://www.designwsound.com/dwsblog/?p=1699...
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My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
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I have to admit the it is very slick application of the old concept, very compatible with the décor objectives of many urban yahoos. An Italian company en&is is making them and I do like the idea
http://enandis.com/en/designs/megapho...
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