The OBP-1's boost-only design gives you the tone-shaping benefits of active electronics without losing the inherent sound of the instrument. The OBP-1's discrete, all-FET circuitry features up to 18dB of boost at 40Hz and 4kHz, creating a sonic environment high in dynamic headroom and low in noise.
The OBP-1's boost-only design gives you the tone-shaping benefits of active electronics without losing the inherent sound of the instrument. The OBP-1's discrete, all-FET circuitry features up to 18dB of boost at 40Hz and 4kHz, creating a sonic environment high in dynamic headroom and low in noise.

All FET design
Two bands of boost
Maximum amount of boost: 18db, occuring at 40 Hz for the bass, and 4kHz for the treble.
Input impedance: 1 meg ohm
Output impedance: 600 ohm
18 volt system. Runs on two 9-volt batteries. This allows for maximum headroom.
Dimensions: 0.98W" x 0.98L" x 0.59D"
Warranty: Three year limited warranty.

The OBP-1’s boost-only design gives you the tone-shaping benefits of active electronics without losing the inherent sound of the instrument. The OBP-1's discrete, all-FET circuitry features up to 18dB of boost at 40Hz and 4kHz, creating a sonic environment high in dynamic headroom and low in noise.
Specifications:
All FET design
Two bands of boost
Maximum amount of boost: 18db, occuring at 40 Hz for the bass, and 4kHz for the treble.
Input impedance: 1 meg ohm
Output impedance: 600 ohm
18 volt system. Runs on two 9-volt batteries. This allows for maximum headroom.
Dimensions: 0.98W" x 0.98L" x 0.59D"
Warranty: Ten year limited warranty.