atmasphere

Responses from atmasphere

Are Pre-Amps necessary?
They are not needed these days with nearly all of todays sources, except maybe with weak tube output sources. Sheesh. It was nice when george was off. Now we have rehash this again and again. Tape is still very much with high end audio as is the L... 
I'm a Dummy, Tell Me About Turntable Mats
as I understand it, you put them on with adhesive.Some do, some don't. One of my favorites, the pad made by Oracle, uses an adhesive. The function of the mat is to control resonance generated in the vinyl by the act of the cartridge tracking. If y... 
Are Pre-Amps necessary?
Not when many poweramps use opamps as their balanced inputs, and then it routes to their single ended input. In these cases by using the single ended input, you get a better sound, as there’s no opamp in the signal path then.OK George, by this co... 
How important is the pre-amp?
This is false.To explain to members with the maths of it.As a 10kohm passive has an outuput impedance of around 2.5kohm, the "cheapest interconnect cables" can be <100pf capacitace per ft and less. It would if be use you 2mts!! of it, still be ... 
Execution matters
So many companies start with good intentions. Hire great electrical engineers with audio experience. Then it's handed over to the mechanic and design group. Then the marketing and finance group gets involved. Then it's handed off to a contract man... 
Analyzing Balanced versus Unbalanced Amplifiers--Difference in sonic quality?
I wanted to see what the new Technics high-end products touting new technology were all about. What Technics did here was create an LAPC circuit that tests and monitors speaker output via a computer chip versus balanced sound. According to Audi... 
A little tube magic?
Ralph,Are you shipping your GaN amp?.....if so, what do the customers think?.....and how much is it? Any specs besides 100 watts?@ricevs We are shipping limited production. We posted one customer's comments (which seem pretty typical) on the feed... 
Recommendation for a highly resolving amp
have you tried different tubes for the sachs preamp?  most 6SN7s can be overly smooth.  This statement is false. Design can have an enormous effect, but 6SN7s of themselves are quite linear. I have Don Sachs 2 tube preamp driving Pass Labs X350.5 ... 
How important is the pre-amp?
@unsound  You really do have to wonder what the designers of Redbook were thinking. In all cases of a Redbook output driving an amplifier, the voltage has to be knocked down, often quite a bit.Many amps are 1.5v or less input sensitivty for full o... 
Are Pre-Amps necessary?
Sure balanced has it’s place in over 3mt interconnect runs, for noise cancelation only, below that there is no need for it.This statement is false both audibly and measurably. The benefit of balanced operation is there even if the cable is only si... 
Why do amplifiers sound different?
Its important to keep in mind that no speaker is actually flat. And for that matter, they have fallen well behind amplifiers with the idea that they are 'voltage driven'. So the simple fact remains that to get the most out of any amplifier or any ... 
A little tube magic?
I would love to run a tube power amp but nervous about running 50+ hours a week. How long do most power tubes last? @brylandgoodmanUsually the driver/voltage amplifier tubes will last 3-4 times longer than the power tubes. But a lot depends on how... 
Bi-Amp Woofers with Class D?
I am starting to think that rather than bi-amping I should considerbuying two REL T7 powered subs.I don't bi-amp; my front speakers go flat down to 20Hz. I use the two subs to break up the standing waves in the room.  
Why do amplifiers sound different?
Actually it isn't. Most speakers are designed around the idea that they are 'voltage driven' which is shorthand for saying that the amp driving them will put out the same voltage regardless of the impedance of the load. In this way, the speaker an... 
How important is the pre-amp?
The one that sounds closest to a piece of wire is the best, that’s the "direct" next best is the "passive", then the "active". As we all know from the existence of the high end cable industry, sounding like a 'piece of wire' might not be the way t...