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In Reply to: BBE- How it works posted by John Kercheval on March 14, 2007 at 17:20:37:
"In short, the BBE counteracts the back EMF (electromagnetic force) that the speakers send BACKWARDS to the amplifier."The vast majority of amplifiers already have this feature built-in. It's called "negative feedback."
Follow Ups:
Ok, if that is true, I didn't know it.My JA-800s amps which go for $70,000 don't have it. I know that for sure.
nt
Bill Bailey
___________________________________________
See my stereo config
The Jadis web page is devoid of anything remotely technological.
Kalman-I enjoy your articles in Stereophile, BTW.
What I meant was, the BBE makes a huge difference- like taking towels off the speakers.
I assume if Jadis had it the BBE would not improve the sound at all or would make it worse (too 'bright'), or the statement that "most amps have it" by the previous poster is incorrect- that is what I believe is the case. The previous poster is simply wrong.
You are correct the Jadis website is tremendously weak on tech. specs, etc. They only really need to say "The Best." After that, what else would Jadis need? We are not talking about Sanyo here ;)
Whether an amp uses negative feedback (almost all do) or simply has a low enough output impedance, the back EMF should not be an issue for any decent and stable amp. If the BBE is doing what you say to improve the Jadis, then the Jadis is poorly engineered. I suspect not.
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