128x128

atmasphere

Responses from atmasphere

What are the best GaN Amplifiers available today?
However, the majority are still rather sterile and lacking in dynamics. I am wondering what is meant by 'dynamics'. IME, most of the time when audiophiles talk about 'dynamics' they are really talking about higher ordered harmonic distortion. D... 
What are the best GaN Amplifiers available today?
I’ve determined that the problem with forum anecdotes with regard to amps is that many are lacking a good point of reference. Someone will chime in saying that an amp like the Starkrimson powered their Magnepans or ESLs well, yet this person prob... 
Help me choose an Audio Research preamp/line stage (Please?)
@_rossbower You do have to be careful with the regulators in the SP10 and SP11. They are easily damaged and prone to oscillation.  
300b lovers
McIntosh MC30 has the similar cathode follower driver 12ax7 to drive 6L6 directly. The output tube works in fixed bias in this schematics. Isn't it? Can you explain how the output tube bias is self adjusted?   @alexberger  Yes. R21 (120K; refe... 
Matching the cartridge to the phono stage
@ajones82 The Technics SL1200G has a pretty decent arm and the 'table is one of the better ones made at any price. Its weak spot it its platter pad, easily replaced.  
Dynaco PAT 4 Pre-Amp ....Why is it Bashed??
Anyone  know anything about Frank van Alstine? I have a chance to buy a Pat 4 restored by him and am wondering if that rings a bell with anyone here. Frank has been doing this sort of work for decades here in town. Its likely not the stock circ... 
What are the best GaN Amplifiers available today?
@yyzsantabarbara +1  
Matching the cartridge to the phono stage
@ajones82 One of the issues with the Rega arms is an adjustment called VTA is tricky or impossible to set, at least the ones I've seen. But if you use a Rega cartridge its spot on. IMO if you have a Rega arm a Rega cartridge is your best bet. If y... 
What are the best GaN Amplifiers available today?
There are tons and tons of factors in a power cord that effect sound quality.  Resistance is one of hundreds....Bandwidth?  You need wide bandwidth to carry 60 cycles?    Actually, you do....and you don't......long story.  What about all the othe... 
What are the best GaN Amplifiers available today?
Ralph would have us all buy 4 guage power cords and use whatever for line level (Mogami is fine, with him....a friend of mine started with Mogami and thought is was good...then he tried two others that BLEW away the Mogami).  He has said over and... 
Matching the cartridge to the phono stage
As for your last point about how the preamp design deals with the RFI, isn't some level of variability in load resistance needed? The market for MC carts presents a lot of options, all of which have very different specs. Or am I not understanding... 
Is My Tube Amp Unfixable? Help Needed
OK, now we are getting somewhere because without the input tube (12AU7), the noise has vanished...gone. So Ralph, I'm assuming a good tech would simply check for bad components in the input stage? And I'm guessing this also eliminates things like... 
Recommendation Request for Tube Power Amplifier
@kevemaher  If your speakers really are 86dB, something to consider is that tube power has always been expensive, which is why in the old days high efficiency speakers were common. It was not until the advent of cheap solid state power that a spe... 
What are the best GaN Amplifiers available today?
Those with Ralph's amp can do a quick test.....just remove the covers and remove all the hardware on the toroidal transformer.....lift it off the chassis and place a quarter inch thick piece of wood underneath.....put the transformer back down an... 
What are the best GaN Amplifiers available today?
Generalized statements are painful. While Ralph may prioritize noise elimination, is it true that he believes it is the only thing that matters? @blisshifi Of course not! @ricevs apparently has a lot of misconceptions and is putting words in my...