This has been my go-to for tubey, grinding, rock tones. Spanks an SVT's preamp. Great for live and recording! Comes with two 9v batteries and the original box. $180 shipped CONUS A pedal for bass with 2 modes of tube-like overdrive and deep EQ editing. The AMT BC-1 Bass Crunch Bass Preamp is built on custom technology by using JFET emulation of vacuum tube clipping. Its wide adjustment range, in combination with the convenience of a stomp box, makes this preamp extremely versatile. Bass crunch BC-1 preamp is based on a two-channel circuit. CLEAN channel shapes the classic bass guitar sound characteristic for old amplifiers and allows both velvet transparent sound and slight compressed overdrive depending on the position of Gain control. DRIVE channel contains a number of over amplification stages and is intended for obtaining a modern sound from clean to totally overdriven. The High Mode provides additional possibilities in terms of range enrichment, heading towards higher sound density and aggressiveness. The adjustable 3-position mid-range filter combined with deep adjustments along the frequency ranges offer bassists rich possibilities in shaping the overdriven tone range. Controls: Clean Level - output signal level adjustment High - high frequencies adjustment Mid - middle frequencies adjustment Low - low frequencies adjustment Gain - channel sensitivity adjustment Drive Level - output signal level adjustment High - high frequencies adjustment Mid - middle frequencies adjustment by means of rejecter filter Freq. notch Freq. notch - cutout frequencies switch (rejecter filter) 500Hz, 330Hz, 230Hz. Low - low frequencies adjustment Pre. Notch - rejecter filter switch before Drive stage. 700Hz, 400Hz. Gain - channel sensitivity adjustment Overall Controls Blend - signal level balance adjustment between channels Clean and Drive Master volume - BC-1's overall output level adjustment. Footswitch DRIVE - Drive channel on/off Led - Drive channel on indicator Footswitch HI/LO - Drive channel increased sensitivity on/off. Led - HI/LO mode with Drive channel increased sensitivity on indicator. FEATURES Sophisticated tube-like sound emulation from clean to crunch 2 seperate channels of control Deep EQ editing Dig deep and find the tone that rocks for you. Order today. SPECIFICATIONS BC-1 Bass Crunch Bass Preamp Connections Right Panel INPUT - instrument input of the preamp SEND FX - signal send to aux effect RETURN FX - aux effect signal return Left Panel OUTPUT - direct output to power amp. CTRL OUT - AMT TS-2MIDI aux convertors control output CAB.SIM. - direct output to mixer's line input. DI OUT - balanced output intended for connection of devices equipped with balanced inputs. Power DC 18V - for connection of power adapter Battery compartment - for two 9V batteries installation.