Amplify the bass in your music with The Epicenter Black Bass Restoration Processor from AudioControl. This amplifier has a signal-to-noise ratio of 110 decibels, and its frequency response range is between 10Hz and 100kHz. The device is advanced enough to reduce harmonic distortion to less than 0.003 %. It's recommended that you use this device with a fuse rated to 150 milliamps or 1 amp. This amplifier weighs two pounds.