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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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Romy,one thing that interest me is you use an active RIAA and the Allnic is passive circuit if I understood things?...
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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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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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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"]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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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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Preferring transformers to resistors.
Brian....
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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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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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If the reason for the passive radiator is that you want to stop interaction between Macondo and MiniMe, I fail to see the sense. The passive radiator is a replacement for the port. If the port causes you problems, so will the passive radiator, assumi...
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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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Romy,I might be confused with the passive and active, but from my understanding you prefer your active 834PT to the passive RC network and passive LCR networks. You also prefer the passive LCR to the passive RC. So 834PT>LCR>RC.If I got it righ...
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Please do not get the idea that I ever "ruled out" active pre-amps or came to the TAP through some sort of object worship. I really couldn't care less about how the job gets done. Active is fine, as long as the results are there...
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My own experience suggests that it is possible to do speaker-level passive crossovers, but I must qualify that by saying that although I have put a lot into the crossovers themselves, and the wire,etc., etc., it has only been since I got the ML2...
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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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I think I wrote In the past here, if you like the 10” Tannoy, why not try the 12” or 15”? The ones with rubber surround are not so good in my view (from CPA or DMT series as they have very restricted midrange) but the cloth surround Tannoys are wort...
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Looks like the phase response is quite complicated, with two phase flips between the knee and the Fs notch, but the PR phase eventually comes back to be in phase below the Fs:
"I
am sure we have all heard that a passive radiato...
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Oh, rowuk, you have no idea how much I agree. To me passive theaters very much like ports and I hated anything which stay even remotely close to it. However, this time the entire Remedios project is is very different s s is built not based upon knowl...
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[quote user="George"] The remote is not a problem. Using a Xantech distributer, repeaters, and electric eye you can configure the two passive remotes in a foolproof, or nearly foolpoof, manner for about $75-100 total. Since I already had the basic Xa...
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[quote user="Romy the Cat"]Herman, I completely do not understand what you ask. The physical aligning of magnets is absolutely irrelevant. The crossover slopes are irrelevant. [/quote]OK.[quote user="Romy the Cat"]Why would you need to do switching b...
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The passive radiator is simply put a closed box Helmholtz resonator with low "q". What does that mean? It means that the passive radiator only resonates at its tuned frequency and its multiples - regardless of the frequency radiated by the driven woo...
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Yes a few ridiculous requests and statements there indeed. Full ridiculousness intended.
I know Dunnoy needs a lot of power and low impedance amp. My aims are not the same as yours here as I'm not concerned to...
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Romy, you have said part of the Magic is the interaction between the Red and the Scanspeak "passive radiator". Could it be that reducing LF to the Red would decrease the "potency" of the intraction between the Red and current passive driver? If yes, ...
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I thought that a digital crossover had a negative impact on sound quality -- especially for use between a midbass, midrange and tweeter channels. So I made an experiment a what I learned was not expected.I used my mid horn and two high pass filters i...
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Thanks for the explication, Robin. This is exactly what I encounted when I messed with passive radiators, many years ago, and it is exactly why I abandoned them fairly quickly, after "making sure" I could not make problems "go away" by "adjusting Fs...
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Well, how many absolutely transparent passive crossovers are there, line level or not? For me, the question is the other way round: if a passive crossover at 1 kHz can be done with good quality, I can "get away" with a single amp for the region over ...
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Hi. Well the behringer belongs probably to the most famous and also to the worst quality wise. Sure the passive sound better...Id go with the learnings from the behringer and apply it in a clean xover, either active or passive or even digital - but n...
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Romy, you mention the passive radiator and then you link to a normal 5" poly-cone driver. I guess I don't get what you mean.I can't remember hearing a "passive radiator" speaker that was worth the dynamite to blow it up. Those I have heard made reg...
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