9v preamp for Fender Deluxe-style basses with side-mounted jack. Price includes shipping in CONUS. Paypal only. US sales only. Purchased in November, 2017. Only used for a few months. It's been in the original box on a shelf ever since. Black knobs on black plate. Volume / Blend Pickups switch Treble (boost/cut - pull for bright) / Bass (boost only) Mid (boost/cut) / Mid Frequency Active / Passive switch Passive Tone Original box with docs and instructions included. Thanks for looking.
In active mode: When the pickups-switch is towards the jack, it uses the blend-knob to control the blend of the pickups. When the pickups-switch is away from the jack, the blend-knob has no function. Both pickups are active with an equal mix. In passive mode: The blend, bass, treble, mid, and mid-frequency knobs are all disabled. Volume and passive-tone knobs are the only ones active. When the pickups-switch is towards the jack, only the bridge-pickup is active. When the pickups-switch is away from the jack, both pickups are active with an equal mix. Hope that helps.