Locomotive Audio 86B-2, 2-Channel Tube Preamp, 2 Tubes per channel: 1x EF86 and 1x 12AY7, 75 dB amplification, Microphone input with switchable impedance: 500 O or 1.8 K Ohm, Line input with 10 k Ohm, Instrument input with 1.6 mega ohms, 48 V...
