[Dave Cook[_2_]]

On 2010-10-20, Audio Empire wrote:

This midbass "authority and texture" of which you speak is LIKELY a loading
issue.

Going into a 100K Ohm load on the BAT? That's as about a low a load
as you can find in an SS amp. The output impedance of the DAC is
around 50 Ohm, giving a 200:1 ratio.

I should mention for completeness that the Vandersteen Quatros require
a high pass filter (6 dB/octave, -3dB@100 Hz) before the amp. The
Quatros built-in amps then compensate. This hp filter always needs to
be adjusted for the input impedance of the amp. I think it should be
transparent to the source, but maybe it's not. I don't know how to
measure the input impedance at the hp filter.

Dave Cook