[Randy Yates]

jwvm writes:

On Sep 9, 8:29 pm, Randy Yates wrote:

However, the impedance seen by the amplifier output stage, at least
in the ideal case, is reduced by two, precisely because of the
increase in output current you described.

We have an English problem here because "amplifier" is a fuzzy term in
this context. When two amplifiers are bridged, the result is a single
more powerful amplifier. The load impedance for this new amplifier is
the same as for the unbalanced configuration. I agree that each
individual amplifier channel will now see an effective load that is
only half as large as previously. If Rick's wording was altered from

"the speakers impedance is effectively halved as see by the
amplifier."

to

"the speakers impedance is effectively halved as see by each
amplifier."

the ambiguity would have been removed.

I agree. The "total amplifier" will see the same impedance while each
"channel amplifier" will see half the impedance.
--
% Randy Yates % "Rollin' and riding and slippin' and
%% Fuquay-Varina, NC % sliding, it's magic."
%%% 919-577-9882 %
%%%% % 'Living' Thing', *A New World Record*, ELO
http://home.earthlink.net/~yatescr