AMT V1 Legend Amps Pre Amp, Effects Pedal for Electric Guitar, Preamp, Reproduces the sound of a classic British 30 Watt 2 x 12"" combo from the '60s, With fully analogue circuit that reproduces the physical sound shaping processes and dynamics of a tube amp, Switchable speaker simulation, Can be used to build a multi-channel preamp with other mono channels from the AMT Legend Amp series, Controls: Gain, master volume, level, low high, Switch: AMP +4 dB/CAB.SIM, -10 dB, LED: Effect on, Footswitch: Effect bypass, Current consumption: 6 mA, Powered with a 12 V DC power supply, Dimensions (W x D x H): 73 x 111 x 58 mm, Weight: 230 g, Made in Russia, Includes power supply@+*Note:* Battery operation is not supported.@+@+@+*Connections:*@+@+, Input: 6.3 mm Jack, Output: 6.3 mm Jack, FX send & return: 2x 6.3 mm Jacks, Channel send & return: 2x 6.3 mm Jacks, Power supply connection: Barrel plug socket, 5.5 x 2.1 mm, negative polarity inside