Audiopipe 9 Band Graphic Equalizer with 9 V LINE DRIVER (EQ-909X)
Audiopipe
Planet Audio PEQ10 Car Audio Equalizer - 4 Band, Pre-Amp, Half Din, Subwoofer Output with Adjustable Filter, Fixed Bands, Remote Subwoofer Level Control, DPS Processor
Planet Audio
Pyle 7 Band Parametric Equalizer - 7 Volt RMS Pre-Amp Output with Subwoofer Gain Control, and 3 Input Sources Selectable, Blue Light Illumination
Pyle
9-Band Car Audio Equalizer 1/2 DIN Pre-Amp,with CD/AUX Input Select Switch,Subwoofer Outputs
PLINIUS