1965 Universal Audio 508 Equalizer Modules Matched Stereo Pair EQ 508-AV Units

Peavey PV215EQ Dual 15-Band Graphic Equalizer

DBX Professional Products 215 Dual Channel Stereo 15 Band Graphic Equalizer

Peavey Q231FX Dual 31-Band Graphic Equalizer with FLS – Made in USA

Peavey 15 band Stereo Graphic Equalizer Rack Mount q215

dbx 231 Dual Channel 31-Band Stereo Graphic Equalizer Used with Power Cable NEW

Peavey Q231FX Dual 31-Band Graphic Equalizer with FLS

Peavey 215f Equalizer