Golden Age Project Pre-73 MK2, 1-Channel Preamp - vintage style electronics, no integrated circuits in the signal path. 80dB max mic gain (enough to handle passive ribbon mics with quiet sound sources). Line input: -20 to +10dB gain. Switchable impedance on the mic input (1200 Ohms or 300 Ohms - will change the tone of most mics), switchable phantom power and absolute phase, high-impedance instrument input for any sound module/electric guitar/bass, simple but effective 4-step LED output level meter, output level control makes for fine gain adjustments (also makes it possible to overload the main gain, stage(s) for more character and then lower the signal to a suitable level before the output stage). Combo XLR/TRS input jacks and separate output XLR and TRS jacks for flexible connections, external high power supply to avoid interaction with the audio circuits and transformers, solid build quality for many years of normal use.