Amt SS-11A, Effect Pedal for Electric Guitar, Preamp, 3 Channels, Covers many classic jazz, overdrive and rock sounds from vintage tube amps, Output switchable between 0 dB amp mode and -10 dB mixer mode with cabinet simulation, Tubes: 2x 12AX7, Controls: Clean: Gain, High, Middle, Bass, Level, Crunch/Lead: CR Gain, LD Gain, High, Middle, Bass, CR Level, LD Level, Switch: Output Amp / Mixer Mode, Current consumption: 600 mA, Power supply with a 12 V DC mains adapter, Dimensions (W x D x H): 140 x 206 x 140 mm, Weight: 0.8 kg, Includes power supply unit, Made in Russia@+*Connections:*@+@+, Input: 6.3 mm jack, Output: 6.3 mm jack, FX send & return: 2x 6.3 mm jack, Power supply connection: Barrel connector 5.5 x 2.1 mm, negative polarity inside