Product Description 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 a push/pull on the Mid pot for midrange frequency selection. Amazon.com 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 mini-toggle or internal dip-switch for midrange frequency selection

The OBP-3TK/PP includes separate Treble, Mid, and Bass pots

The Mid pot is push/pull for Midrange frequency selection

Bass control: plus/minus 18 dB @ 40 Hz

Mid control: plus/minus 16 dB @ 400Hz or 800 Hz

User selectable frequency center

Treble control: plus/minus 16 dB @ 6.5 KHz

Input impedance: 1 meg ohm Output impedance: 100 ohm 9 or 18 volts operation

Additional 6dB with 18 volts

Distortion: .019 into 10k ohm load Noise: -95 dBm unweighted

Battery life: 324 hours Wire lead length: 6.50 inches Low noise discrete FET input stage, center detent 50 K linear pots,with a dual concentric pot available

Dimensions: 0.98"W x 0.98"L x 0.59"D Warranty: Three year limited warranty.