inputs.text: great unit - ive seen one review unit alternately branded nippon audiopipe names figured id give shot wasnt expecting much 9 bands eq price alluring bit build quality good nothing seems loose connections solid remain tight variety rca connections tried power plug connector holds firmly place side note power connector tossed mounting hardware packaging easy overlook first open one feature really appreciate locking center detent eq adjustments fader lets know youve centered band back null without guess blue backlighting bright evenly spaced theres not one huge bright spot behind knobs none others control knobs seem firm smooth no slop adjustment measuring response rta bands seem accurately labeled within 10 octave example 1khz band seems centered 11khz 110 octave rated frequency not problem minor error filters relatively highq dont overlap opinion good thing measured 10db cut filter way 12db boost dont access oscilloscope clipping could not measured subjective pointofview signal sounds clean first connected unit used switched 12v lead switched constant 12v terminals power plug experienced significant turnon pop wiring power plug correctly switched constant 12v lead eliminated issue using zerobit track havent noticed rise noise floor even unit level highest setting sum highly recommend unit