AMT Bricks M-Lead Tube Pre/Drive, Effect Pedal for Electric Guitar@+The AMT Bricks-Series tube preamps are based on the sounds of famous predecessors. They can be used before the amp or directly in a power amp. When using several preamps of this series, they can communicate with each other, i.e. if one preamp is switched on, the others switch off automatically. This makes it possible to put together a multi-channel, individual preamp setup., Reproduces the sound of a legendary British stack top with a master volume from the 80s, Controls: Level, Gain, Hi, Mid, Low, LED: Effect on, Footswitch: Effect bypass, Switch: Preamp/Drive, Input: 6.3 mm jack, Output: 6.3 mm jack, CTRL A: 3.5 mm jack plug, CTRL B: 3.5 mm jack plug, Power supply connection: Barrel connector 5.5 x 2.1 mm, negative polarity inside, Current consumption: 300 mA, Power supply with a 12 V DC mains adapter (not included), True bypass, Dimensions (W x D x H): 55 x 95 x 47 mm, Weight: 270 g, Made in Russia, *Note:* Battery operation is not supported.