High Low Level Impedance Adaptor - Car Audio System RCA Line Output Converter Adapter w/ Adjustable Level Control - Works on Vehicle Amplifier, Equalizer, Home Theater Setup - Legacy LN60 | Walmart Canada
Rockville RPA60BT Home Theater Bluetooth Receiver + 10 Band Graphic Equalizer 613815871668 | eBay
2 channel Audio Equalizer circuit - Gadgetronicx
AudioSource EQ 200 10-band stereo graphic equalizer at Crutchfield