ITEM NAME:Dual OP Amp Board Preamp DC AmplificationXB for NE5532 OPA2134 OPA2604 AD826 OZ.OPA2134, OPA2604, AD826, OPA2111, etc., then ± 5 ~ ± 18 to work. Board leaving two mounting holes. 1PC Dual op amp DC Pre-amp amplifier empty board. Classic line, although simple, spend a good op amp, such as the assembly with the gold seal OPA2111.