Don... I'm also anxious to learn about your 31C/32 A/B comparison.

While you're at it, it'd be interesting to compare one of those speakers with and without the mixer... not necessarily comparing volume, but the definition and clarity of sound... thx.

BTW, I recently heard someone doing a single with an older PSR and a Barbetta 2200, a smaller yet amp no longer in production... sounded great.

Glenn