its not a 12 band, nor does it have the aux rca in, but here is the stats:
Pioneer EQ-6500
9-Band Parametric/Graphic Equalizer with Crossover and Subwoofer Output
Features
9-Band Parametric/Graphic Equalizer:
Frequencies: 40-80Hz (Parametric), 125, 250, 500, 1k, 2k, 4k, 8k, 16kHz
Gain: +/-12dB
Crossover Network:
Variable 40-120Hz, -12dB/oct.
HPF for Front/Rear
LPF for Subwoofer
Subwoofer Level Control: -~ to +10dB
Equalizer On/Off Switch
Subwoofer On/Off Switch
Subwoofer Phase Switch
Dual Illumination (Amber/Green)
Gold-Plated RCA Input
Gold-Plated RCA Outputs (x3 Pair) (Front/Rear + Subwoofer)
Trim Ring (Included)
Dimensions (WxHxD): 7" x 1" x 4-3/4"
MSRP: $265
Its in excelent condition and will give it up for $75, no trades.