This is a dedicated bass EQ that is a faithful reproduction of the classic Ampeg Flip-Top amps tonal circuit. ...

The Boss GE-7 Equalizer is an exceptionally quiet EQ with silent FET switching. 7 bands of EQ in the optimum range for guitar. Provides 15dB of either cut or boost in each selected range. ...

An all-new active EQ that works equally well on guitar or bass and also functions as a signal boost. ...

The Electro Harmonix Knockout EQ is a must for a versatile rig be it bass or guitar as it is a high and low shape filter for both. It features a 7 pole low end filter and a 6 pole high frequency filter to allow for any sort of sound sculpting you wish. Make your Les Paul sound like a Strat, your Strat sound like a Tele, or boost both to emulate the heavy mid scoop metal tone. ...

The Empress ParaEq w/Boost is designed to be a simple device that does its job extremely well. It gives musicians a powerful, musical, high quality EQ in a conveniently small package. ...

The Fromel Shape is a Parametric EQ/Buffer - A unity gain EQ with selectable mid frequency sweep and selectable true bypass or buffered bypass. Only the finest ingredients are used including lots of op-amp - the OPA-2134 (a favorite of Mr Fromel). Huge headroom, low noise, never harsh, and completely transparent with all controls at noon. ...