sE Electronics DM-1 +28dB OF CLEAN, CONSISTENT GAIN, INDEPENDENT OF LOAD designed for neutral, balanced sound quality the perfect way to boost the signal of a passive microphone gain stays consistent regardless of connected load provides significantly improved level to your mic preamp for proper gain staging SOPHISTICATED CLASS-A ELECTRONICS state of the art electronics and high-grade FETs provide supremely low noise transformerless design for pristine sound quality provides the lowest noise in its class DEDICATED OUTPUT BUFFER AMPLIFIER provides +28dB or +15dB / +30dB output independent of load impedance or cable length extremely low output impedance drives long cable runs and can reduce susceptibility to RF interference, buzz & hum SLIM, RUGGED ALL-METAL HOUSING WITH PREMIUM FINISH efficient rejection of any electrical interference and noise high-quality finish ensures a great look for many years slim design allows for easy placement in the studio or on stage