Hifonics Car Audio Equalizer 7-Band / 9-Volt Line-Driver Multiple-Source Signal
Hifonics HFEQ7 7-Band 9 Volts 1/2 DIN Pre-Amp Car Audio Graphic Equalizer with Front 3.5mm Auxiliary Input, Rear RCA Auxiliary Input and High Level Speaker Inputs Black. Frequency Response: 10Hz - 20kHz | Signal to Noise Ratio: >99dB.