bsiab bass reduction

[numpty]

Which caps do you remove or change to reduce the bass in a bsiab2 are they C10 13 and 14 (0.022uf) ? I use a ts808 clone with my tube pre amp with the bass turned up a bit to compensate for the ts808 lack of bass, however when i switch to the bsiab there is a low register boomy flubbyness which i would like to get rid of without having to turn the pre-amp bass down.

[petemoore]

  Look for some caps in the signal path, or the gate cap to source on the bias Jfets of the Mu amps, or the schematic.

[numpty]

would that be c7 (.01uf) on q4 (j201) as on the ggg schematic?

[petemoore]

would that be c7 (.01uf) on q4 (j201)
  Could be, I'd have to look at the schematic, IIRC there is one G/S cap on each mu stage, top Jfet.