It’s not just the big red knob, the IGS Audio NE573 500 Series Microphone Preamp features matching components, old architecture, original Motorola transistor, and the same great sound – now in your 500 series rack. Switchable impedance and buffered instrument make it an ultimate workhorse for your studio.

Identical front panels and knobs are not rocket science, the outside is the easiest thing to replicate. The true beauty of NE73 is in the circuit. The unit is operating using 24 volts, with Carnhill transformers on inputs and outputs, Grayhill switches and Motorola transistor on the output stage – just like the very first version of the original pre…

Operating on 24 volt power, with components identical to the original the NE573 brings back the sound of the golden era of record making.