Aguilar OBP-2TK 2-band Boost/Cut On Board Bass Preamp

Description Wired up with one 9V battery, this onboard preamp will fit into just about any bass. +/-18dB at 40Hz and +/- 16dB at 6.5Hz. Stacked controls. Features Low-noise, discrete FET input stage +/-18dB bass at 40Hz +/- 16dB treble at 6.5kHz Separate treble and bass knobs Center detents Specifications Bass control: plus/minus 18dB @ 40Hz Treble control: plus/minus 16dB @ 6-1/2kHz Input impedance: 1 meg ohm Output impedance: 100ohm 9V or 18V operation (additional 6dB with 18V) Distortion: .019 into 10k ohm load Noise: -95dBm unweighted. Battery life: 324 hours Wire lead length: 6-1/2" 1"W x 1"H x 1/2"D 10-year limited warranty