I have two of these on-board preamps available. They were removed from SR1400TE NT Premium & SR1405TE NT Premium basses and are voiced for the Nordstrand pickups that came stock on the basses. They are prewired so you would just need to solder the pickups and output jack to each preamp. Each individual preamp has 5 knobs (Volume-Blend-Bass-Mid-Treble) and 2 switches (preamp bypass/mid frequency selector) and comes with all of the associated hardware that was installed in each of the Ibanez basses. Details, pics and wiring diagram are provided below. What you see is what you get. I'm asking $40 each (via PayPal) including shipping.