Yes, I missed the distortion spec, that would certainly account for the
apparantly higher voltage into 6 ohms. Odd way of quoting a spec though.
It does mean however, that the presumption that the amplifier is running out
of current into 6 ohms may not be the case.

S.


"Don Pearce" wrote in message
...
On Mon, 09 Jan 2006 19:45:24 GMT, "Martin Hardy"
wrote:

How can you tell that the power will be low into 4 ohms? I don't know much
about this subject, but I would have thought that if you get 90W into 8
ohms, 125W into 6 ohms, then reducing the impedence further to 4 ohms
would
have meant the power would go up again- not fall. How does this work?


If you look at the two sets of figures, even for the modest power rise
into 6 ohms, they had to accept a hugely increased distortion figure.
That effectively means that the amplifier has already gone past its
comfort zone at 6 ohms so 4 would be asking too much.

d

Pearce Consulting
http://www.pearce.uk.com