The Destination Thump is a super simple easy to use reliable and necessary tool for any bass pedal arsenal. Use it to make your amp louder for solo work. Use it to revive tone from long lengths of cable and too many pedals. It can also be used to put 'hair' on your strings by overdriving your bass amp gain pedal for fat killer and cutting tones. All at a price and quality make that you have come to expect from Option 5. These little boxes are so handy you may as well have two! FEATURES INCLUDE All analog circutry. 0 to 15 dB of CLEAN gain! VERY low noise floor. Easy to adjust gain trimmer will not be moved accidentally by your foot! Standard regulated 9 volt DC wallwart operation. True Bypass. RoHS compliant.