Up for sale is a 2012 John East J Retro 01 preamp taken from a seldom used project bass that is now down for stripping / parts.
A superb preamp enlivening any jazz style bass and giving huge tonal palette, the retro 01 is a drop in active preamp as a direct replacement for the standard passive control plate.
Some basses may need a touch of routing to provide enough space for the circuit board.
It has 3 stacked knobs and 2 micro switches, knob one controlling volume and pickup blend, pot 2 bass /treble cut / boost and pot 3 mid frequency selection / mid cut or boost.
The micro switch near the jack is a passive bypass and the switch near the neck end is a blend control for perfect passive mix or blend control using the blend pot.
This has been in a backup bass and has seen light use despite being from 2012.
Will post anywhere!
Thanks for looking.