128x128

atmasphere

Responses from atmasphere

Short List of Amps I prefer over the Pass Labs XA25 or INT 25
Right, and this is the basis of MP3 compression, among other things. Why do you think the masking principle benefits tubes?? I thought I had explained that enough, but nutshell explanations can be tricky. Essentially though the tubes have enough 2... 
What Class D amps will drive a 2 ohm load
A class D amp can do 2 ohms if the intention is there on the account of the designer. Several things have to be present to really make this so.* the amplifier must have sufficient current handling ability in the output transistors and power supply... 
Seriously considering tube preamp…opinions?
Its a simple fact that if the front end of the system doesn't get it right, the best amps and speakers downstream won't win you any of the lost signal. For this reason I do feel that a good tube preamp is paramount. But tubes bring something to th... 
Short List of Amps I prefer over the Pass Labs XA25 or INT 25
Pass Labs admittedly and intentionally adds some even order harmonic distortion to all their amp designs.   This is commonly known to be perceived by humans as a euphonic overall sound quality similar to tube amps, which many devoted Pass fans ... 
Demo'ing Class A amps, Appreciation Suggestions from those who recently been there
Well I think you will still have the mini blast furnace affect with the class A XA25.That's the thing about class A. People have often commented about the heat they think our amps make, but compared to a true class A solid state amp of the same po... 
Cartridge recommendation for classical listening
You may indeed be right about the inductance and capacitance, but it was much easier to change cartridges.Since you now have a different cartridge, but apparently also high output, the same rules apply. You might like it now, but if loaded properl... 
Turntable Mats: Rubber, Felt or Cork.
So atmasphere, the obvious question for us non-scientists.  What material(s) have the same, or very similar, hardness as a typical vinyl LP?I'm not a fan of acrylic, but it can be made to have a similar hardness as vinyl. An LP would do nicely b... 
What’s a 10k to 15k speaker from smaller company that performs well?
Classic Audio Loudspeakers. We showed with them at the Tampa show in February- AVShowrooms gave us 'Best Sound at Show', which is not the first time that's happened. Very nice speakers; easy to drive. 
What Class D amps will drive a 2 ohm load
Like I said so many times now, a "stable" amp into 2ohm load means it won’t oscillate blow up and take out speaker drivers, but it does not mean it can drive the loads we are talking about here. Yes.'Stability' only refers to oscillation or the ... 
Demo'ing Class A amps, Appreciation Suggestions from those who recently been there
That speaker is very tube friendly. We have a good number of Tannoy customers using our M-60s (60 watts class A) with them.  
Cartridge recommendation for classical listening
Since the high end of the cartridge tends to be a little bright (which you might not agree with,) records that have a bright high end of their own are exacerbated by volume increase. @rvpiano  As I mentioned earlier, if you have a high output ca... 
Turntable Mats: Rubber, Felt or Cork.
Here are the mechanical requirements for a good mat:It must have the same hardness (durometer) as the LP, so vibration from the LP can be absorbed (without reflection) and converted to heat. To this end it will affect tonality if too hard or too s... 
Question about Tone Controls + Equalizers
I got my first preamp without tone controls back the late 70s. I've not looked back. The trick was getting all the components to that minimum level of competency that no tone controls were needed. I do miss the bass on some recordings such as Ever... 
Tube amplifier bias current question...
I suspect that the bias was not tested after the tubes had sufficient warm-up time when installed. I usually set the bias low initially and then set it again after an hour of operation. If the power supply isn't regulated (and in this case I mean ... 
What Class D amps will drive a 2 ohm load
The term 'stability' refers to the ability of a circuit to not oscillate. In the context as seen in this thread where it refers to doubling power as the load impedance is halved, it is being misused. IOW a circuit that is unstable is prone to osci...