The MC401 "BOOST/LINE DRIVER" has a simple design, but is extremely useful when combining various effects. This circuit is the result of CUSTOM AUDIO ELECTRONICS' many years of experience and accumulated knowledge, which has helped them solve problems that arose while caring for the effects systems of the world's top guitarists, and restore a punchy, brilliant sound. It also provides an ultra-clean sound for solo playing or as a boost to drive other effects. The sound is characterized by its ability as a "LINE DRIVER" that does not boost a certain fixed frequency band but rather brings out the original sound as is, so it can be used not only for electric guitars, but also as a line buffer for electric basses and electric acoustic guitars.・Boost from 0dB to 20dB without any coloration ・Large headroom, as if driven by 18 volts, despite being driven by 9 volts ・True bypass●SPECIFICATIONS Input Impedance 1 MΩ Output Impedance 150 Ω Nominal Input -22 dBV Output Level -22 dBV Boost Gain Range 20 dB Noise Floor* >95 dB Bypass True Hardwire Current Draw 1.5 mA Power Supply 9 volts DC