Seymour Duncan SFX-09 Double Back Compressor Guitar Effects Pedal

Compression Ratio: Adjustable from 1:1 to 20:1
Maximum Compressor Gain: +50dBr
Attack Speed: Adjustable from 3.2ms to 50ms
Double Back Gain: Fully “off” to +34dB
Battery Life: 100 Hours with a premium alkaline battery
Power Source: 9V battery or external 9VDC regulated wall transformer, center pin negative. 5mA current drain
Input Impedance: 1 Megohm (1000K ohms)
Output Impedance: 2.75K ohms maximum
Output Clipping Level: 7V Peak-to-Peak
Distortion: Less than 0.3% at 300mV RMS output at 1 kHz
Noise referred to Input: -102dBV unweighted, 400Hz – 20kHz, input shorted
Type of Circuitry: True bypass, class A
Compressor type: Voltage Controlled Amplifier (VCA)
Dimensions: 4.75″ wide X 5.0″ tall X 2.3″ high
Chassis material: 16 Gauge Steel