ROCKVILLE REQ42 21 BAND STEREO EQUALIZER - SERVICED - CLEANED - TESTED. THIS 21 BAND STEREO EQUALIZER IS IN EXCELLENT CONDITION, NEAR MINT INSIDE AND OUT. WE REPLACED ALL DEFECTIVE CAPACITORS. REPAIRED ALL POOR SOLDER CONNECTIONS. (WE HAVE BEEN IN BUSINESS FOR OVER 60 YEARS REPAIRING VINTAGE AUDIO EQUIPMENT.) IF YOU HAVE ANY CONCERNS, PLEASE CONTACT US PRIOR TO YOUR PURCHASE.