BEHRINGER 73 Microphone Preamplifier

A Midas-transformer preamp for your 500 series rack.

You track vocals and instruments, and a slot in your 500 series rack is waiting. The 73 is a microphone preamplifier with custom-built Midas transformers and discrete Class-A amplifiers. Its inputs and output are transformer balanced. Frequency response is 20 Hz to 20 kHz, ±0.5 dB.

Coarse steps, then fine trim

A rotary GAIN switch moves in 5 dB steps. The microphone range is -20 dB to -80 dB, and the line range is -20 dB to +10 dB. TRIM then adds -20 dB to +5 dB, with a centre detent at unity gain.

Front panel or rack input

Press FR I/P to use the front XLR/¼" TRS combi socket instead of the rack input. LO Z selects a low microphone input impedance, 300 Ω instead of 1200 Ω. It operates on the mic input only.

Phantom power and phase at a touch

Press the TRIM knob to switch 48 V phantom power on or off, in the mic range only. PHASE reverses the phase of the output signal. The SIG LED lights green above -25 dBu and red near overload, above +26 dBu.

Features

• High performance, compact 500 series premium microphone/line preamplifier based on the classic 1073 design
• Class A, all discrete signal path for highest signal integrity
• Custom-built Midas input and output transformers
• Versatile Gain control to handle various type of inputs including mic, line and instrument
• Electronically controlled resistor-stepped 80 dB rotary gain switch for extreme precision and low noise
• Trim level control with integrated phantom power switch
• Signal indicator and intuitive phantom power LED with protective automated switching
• Illuminated switches for Phase, Hi/Lo Impedance and Front/Rear Input selection
• Transformer-balanced inputs on combo connectors
• Premium-quality components throughout for a crystal-clear audiophile signal path