RedSeven Compulon Pro Compressor; Effects Pedal for Electric Guitar; The Compulon Pro is an optical based compressor with a two stages mode compression for a better tracking of your dynamics. offers a wide pallet from very subtle to fast 160x type compression; In addition RedSeven added C.S.S. (Coil Saturation System) to this design, which is a very particular circuit, act to mimic a real output transformer. By driving hard the knob, it will return in some nice and fat harmonic content, by turning down for a nice touch of buffering and something extra to your tone; Controls: Volume, Mix, Threshold, C.S.S. Level; Switches: Input pad, serial/parallel; LED: Effect On, C.S.S. On; Footswitches: Effect Bypass, Boost Bypass; Connections: Input (1/4" Jack), Output (1/4" Jack), Remote (1/4" TRS-Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 100 mA; powered by a 9 V DC Power Supply (not included); suitable optional Power Supply: Item no. #409939; True Bypass; Dimensions: (W x D x H): 125 x 100 x 70 mm (4,92" x 3,94" x 2,76"); Weight: 500 g (1,1 lbs); Handmade in Italy; Note: Battery operation is not supported