Cool, thanks Jimmy, now I know I can get either the BQS or the BQC. I'm looking for a Bass with neck-thru design 35" scale and very nice body wood with 16.5mm string spacing Ebony or dark black brown Rosewood fretboard and I know its either going to have 5-holes in which case I'll get the BQS active 18v 3-band EQ, or it's going to have 4-holes in which case I'll get the BQC active 18v 3-band EQ. Because like you said, there both the same preamp just one has 4 knobs with 2 stacked and the other has 5 knobs with one stacked, awesome.I have a BQC in two of my basses (same preamp but 4-knob) and I'm able to get my sound much better dialed in with the BQC than the BTS thanks to the sweepable mid control. There are other preamps you can get for them that look interesting, but I don't have any problems getting what I want out of the BQC so I don't sweat it. I don't use 40DC's so I can't help you there, but I do think my active neck-thru basses with PJ's can cop Spector-sounding tones.

