Bought this about a month ago and had it installed for less than two weeks. Decided to add a pickup so needed another pre to accommodate the second p/u. Plugged in before I removed this pre and all's well.
This is the Bartolini 2.4AP bass pre. Controls are:
Volume (push/pull for either active or passive operation)
Mid (push/pull for secondary frequency)
I have it wired for 18v operation.
Also included are three black knurled knobs and one bottom knob for the concentric pot.
$99 which includes USPS Priority shipping.
Feel free to ask any questions.
Thanks for looking!