Aguilar OBP-3SK/PP On board Bass Preamp The OBP-3 is Aguilar’s most flexible onboard preamp design, providing +/-18dB of cut and boost at 40Hz, +/- 16dB of cut and boost at either 400Hz or 800Hz and +/- 16dB of treble cut and boost at 6.5 kHz. The OBP-3 has multiple wiring options, and can be wired with either a push/pull pot, mini-toggle or internal dip-switch for midrange frequency selection.
OBP-3SK/PP: Includes stacked Treble/Bass pot and separate Mid pot. Mid pot is push/pull for Midrange frequency selection
![Aguilar AG 4P-51 50's Era Precision Bass Pickup [4P-51]](https://image.makewebcdn.com/makeweb/r_409x409/ndnXxmvKH/Aguilar/2_22.jpg?v=202405291424 "Aguilar AG 4P-51 50's Era Precision Bass Pickup [4P-51]")
