Just recorded a couple of sound clips with my 57 P bass, volume and tone on 100%
Played with fingers
www.geocities.com/wweuk2/MXR_P_BASS_FINGERS.wma
Played with pick
www.geocities.com/wweuk2/MXR_P_BASS_FINGERS.wma
Both of the above used the following settings on the M80:
MXR clean channel, color off, all knobs at 12:00
MXR clean channel, color on, all knobs at 12:00
MXR distortion channel, all knobs at 12:00
MXR distortion channel, all knobs at 12:00 expect blend at 10:00 and gain at 2:00
Slap
www.geocities.com/wweuk2/MXR_P_BASS_SLAP.wma
All knobs on the M80 at 12:00, first with color off and then on.