In message 
          "Dave Liquorice"  wrote:

> Simply due to better damping of the speakers by the amp. Amps at/in
> speakers is the way to go.

I remember how "damping factor" used to be defined as the ratio of
the nominal loudspeaker impedance, to the amplifier's output
impedance.  No self-respecting audiophile would be content with a
damping factor of less than 100.

The trouble with this is that the resistance of the loudspeaker's
equivalent circuit always appears in series with the amplifier's
output impedance.  For an 8 ohm loduspeaker system, the resistance
is typically in the region of 5 ohms (and very remperature-dependent
too - it's the resistance of the voice coils, which experience quite
big temperature excursions; the resistance is proportional to absolute
temperature).  So you can never achieve a damping factor as high as 2.

> With a limited budget spend the money on the speakers, that's the really
> hard and thus expensive, bit to do well.

Definitely true.

Dave

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