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.
Features:
Two bands of boost
9 or 18-Volt on Board Preamp
All FET design
Specifications:
Max amount of boost: 18db, occurring at 40 Hz for the bass, and 4kHz for the treble