[sdiy] To float or not to float?

[harrybissell at wowway.com]

I'd say "Float"

A transformer gives galvanic isolation anyway. Floating would prevent
any possible damage should the speaker get an unintended ground
external to the amp.

I think there will be no noise benefit at all...

H^) harry




On Wed, 20 Feb 2008 11:43:15 -0500, anthony wrote
> I've noticed in some tube amp designs, the speaker output is left 
> floating while other times one end is grounded. I understand needing 
> to ground one side when you are implementing some negative feedback 
> from the speaker out put. ut why ground it when there's no feedback? 
> Does it reduce hum? I would think not - especially if it was just 
> grounded at the jack right as it touches the chassis rather than a 
> common ground further inside the chassis.
> 
> So: to float or not to float?
> 
> cheers,
> Anthony
> 
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Harry Bissell & Nora Abdullah 4eva