The BB Preamp offers awide variety of sounds. It's capable of a 30dB+ clean boost with an adjustable ±15dB two band active EQ which adds a wide range of harmonic content to your ideal sound.
The BB also utilizes a pre-gain stage which allows the Pedal to go from a very pristine clean to a very smooth,compressed, overdriven sound.
True bypass for eliminating any signal interference when switched off.
Can be used with AC adaptor (optional) or 9V Battery.
" The BB Preamp is a great sounding soft Distortion and Sustain pedal. It really produces a great fat singing lead tone! The BB gives you a more sustained focused lead tone than the AC. Between the RC, AC, and BB, you can cover all your boost, overdrive, and gain needs!
Josh Smith".

Specs
Dimensions (W/D/H): 4.39" x 2.38" x 1.98" (112mm X 60mm X 50mm)
Weight: 0.6 lbs. (280g)
True Bypass Switching
Power Consumption: 9VDC/6mA
Battery Type: 9VDC (006P) x 1
AC Adapter (Optional): 9VDC, Negative Tips (Regulated recommended)
Input Impedance: 500k ohm (min)
Output Impedance: 10k ohm