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In Reply to: RE: incorrect on all counts posted by morricab on July 24, 2015 at 04:43:31
You dismiss my perception: can't possibly be that way. That's calling me a liar, and makes it seem as though you have heard my amp. How else could you make such judgments?
Oh yeah, you heard a simple chip amp years ago. 47 Labs was a rip off. They charged like $1500 or something for less than a couple hundred bucks of parts, including enclosures. Thus was born the gainclone movement, but there has been some improvement and innovation.
This amp uses the same Nat Semi LM3886, but goes quite a bit beyond that with another opamp nested in the feedback loop forming a current pump. Carefully selected, super-premium passive parts are used throughout. You've never heard it, and it sounds nothing like a simple chip amp. It sounds better than most SS amps and some of the tube amps I have heard. Who is in a better position to make a comparison? Do you understand why I'm insulted by your dismissal? This amp is not the ultimate, and it's not overwhelmingly powerful, but it might be an alternative to modest but power-hogging Class A and tubes. I would like people to at least open their minds to the fact that there might be something better. So far, the posters here cannot accept the possibility, and that's a shame. Without any experience, you already know it can't happen. It's just not heavy or hot enough to be a REAL amplifier.
I don't leave any system on except the main one. The main system consumes a few watts if not playing anything, and, even when it does, it's very efficient. You could hold the heatsinks in the palm of your hand, and they barely get warm. At idle, it probably consumes about as much power as an alarm clock.
The other two systems are very modest, all driven by the main system sources. Workshop system consists of a salvaged Nakamichi receiver that had a busted preamp PCB. It has been gutted except for the PS/power amp stage (discrete components, gets a bit warm at idle), now hooked up to a passive volume control, driving unique 2-way speakers I built myself using Peerless drivers. In the kitchen I have a tiny class T amp with SEAS coaxial speakers in homemade enclosures. I probably spent less money (but far more time and effort) on all three systems combined than some have spent on a single fancy tube amp, and altogether they probably consume much less power. Your insults are misdirected.
Tom E
Follow Ups:
"You dismiss my perception: can't possibly be that way. That's calling me a liar,"
No, that is implying you are deaf...not a liar. Big difference.
With the rather large external power supplies the 47 labs was a not so simple chip amp. It sounded fine for a basic sound.
"Do you understand why I'm insulted by your dismissal? This amp is not the ultimate, and it's not overwhelmingly powerful, but it might be an alternative to modest but power-hogging Class A and tubes"
Umm, you have a skin the thickness of rice paper maybe? We are talking about amps, man...I didn't call you or your family a name or something. I know it's not the ultimate, or powerful. I take exception with your contention that it is a viable alternative to serious "power hogging" designs.
I know more than a few tooby guys using chip amps now on their Horns , tri-amping them and not missing toobs, I know , deaf huh ... :)
Edits: 07/26/15
I know , deaf huh ... :)
You said it...
Triamping with tubes can get too hot for even a tube guy. I had a friend triamping his Apogee Grands (only used the built-in Krells for the subs) with 3 x NAT monoblocks per channel. The heat in his room was staggering...but damn did it sound good.
That's because they're unbiased...
Sorry, couldn't resist.
R.
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