Golden Age Project PRE-73 Mk III Classic Microphone Pre-Amplifier. The MKIII has the following new features compared to the MKII: – Tantalum capacitors in the signal path. Selectable two frequency high pass filter, 6 dB/octave at 40 or 170Hz. The pcb is prepared for the Carnhill input transformer. Revised and less complicated GAIN switch with […]... Read More