Ground referenced Power Amplifiers

[AudioGremlin]

Looking for a 2 channel ground referenced amplifier with muscle! (Not bridged with negative speaker terminal referenced to earth). So far these are ground referenced:
Classe CA-M300 & CA2300, Bryston 4Bsst2, 2B, 3B, 6B, 9B
Chord, all of them I think a ground referenced.
Any suggestions from you guys (& Gals) would be mightily appreciated.

[tdelahanty]

I think your terminology is confused. A bridged or fully balanced amp's negative terminal is floating, not referenced to (earth) ground. A single-ended or differential (design) amp's output is referenced to earth ground (black output term.) I have not looked at the amps (schematic) you mentioned and do not know their design.

[AudioGremlin]

A balanced amplifiers output is centred about ground i.e. the positive & negative speaker terminals vary above and below ground respectively. Often manufacturers publish warnings in their manuals to never ground either speaker terminal.
I'm specifically looking for amplifiers where the negative speaker terminal is grounded.

[AudioGremlin]

Perhaps I should have worded it clearer, yes single ended, not balanced or bridged designs. Specifically ground referenced at the output.

[Rayooo]

Originally Posted by AudioGremlin

Perhaps I should have worded it clearer, yes single ended, not balanced or bridged designs. Specifically ground referenced at the output.

Parasound JC-1 is...but don't trust me, I have a schematic if you'd like to independently verify, not something you want to "assume".

[AudioGremlin]

Thanks rayooo, would need to be absolutely sure. Do you have a scanned copy of the schematic to hand?

[Rayooo]

Originally Posted by AudioGremlin

Thanks rayooo, would need to be absolutely sure. Do you have a scanned copy of the schematic to hand?

yup, have PDF copy, relatively small file size should be OK for email.
Send me a PM if you like and I'll get them to you.

[Rayooo]

If I'm not mistaken, some of the Bryston amps are singled ended output also, although the 28B appears to be push-pull output so maybe I'm wrong about this.

I like Bryston for many reasons, not the least of which they publish schematics on their web site, for an electronics hacker like me, that gives them brownie points right out of the gate.

I really really need to think about a couple big Bryston amps, but now I'm way way off the subject.

[Joe Appierto]

I think you need to be a subscriber in order to send a PM.

[Rayooo]

Originally Posted by Joe Appierto

I think you need to be a subscriber in order to send a PM.

Oh right, whoops....