i have a 'Carl Martin Bass Drive' for sale ... very nice tubey overdrive w/3 band EQ ... and Carl Martin quality .. ! changed out oem tube to a sovtek 12ax7 lps ... long plate / spiral filament .. low noise , tight bass ... has box and manual ! a few scratches on bottom edges from previous owner , .. my stuff never leaves the home studio .. ! $ 165 shipped - lower 48 - Paypal OK
here's some specs and info from Carl ;
The 'Bass Drive' is incredibly easy to operate thanks to the no-nonsense 3-band EQ (Bass, Middle & Treble) and independent Volume & Gain controls. Taking you anywhere from a little bit of edge to over-the-top tube distortion, the Bass Drive comes equipped with an onboard 12AX7 preamp tube to offer up to +40dB of additional Gain.
For premium sound quality and performance, the Bass Drive was designed to blend into the sound of your rig rather than sit on top of it like many other pedals on the market. The Bass Drive acts and reacts to your playing very much like the front end of a tube amp, giving you the best of both worlds at the click of a switch. It offers complete sonic transparency so that your bass rig sounds exactly like... your bass rig!
Housed in Carl Martin's signature low-profile metal housing in conservative black, the Bass Drive features easy-to-read/easy-to-adjust chrome control knobs along with a vented chamber in which the 12AX7 preamp tube lives. The Bass Drive gets its power from an AC cable and a regulated +/-12V internal power supply, which allows Carl Martin to use only the highest quality components while offering loads of extra headroom.