The Retro Instruments OP-6 is a single channel valve mic preamp inspired by the vintage RCA OP-6 originally designed for ribbon microphones.
The Retro Instruments delivers the same rich and thick sonic performances of this rare and much-coveted mic pre which featured almost endless headroom and gain. Modern appointments added by Retro instrument include an input transformer allowing the user to adapt it to the optimum impedance and 48V phantom power to that it can be used with condenser microphones. The OP-6 also offers the choice of microphone or instrument inputs to enrich your instrument with the beautifully rich tone of a legendary mic pre.