Universal Audio 2-610S Dual-Channel Tube Mic/Inst Pre-EQ Silverface


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SKU: UNI-UA-2610S Categories: , ,
Universal Audio


The Universal Audio 2-610 is a two-channel tube microphone preamplifier based on the legendary Universal Audio 610 modular console. Third in the Universal Audio Classics product line, the 2-610 follows the 1176LN Limiting Amplifier and Teletronix LA-2A Leveling Amplifier in our commitment to authentic analog recording technology.

Designed by Bill Putnam, the Universal Audio 610 was among the first modular recording consoles. Early Universal Audio consoles were used in all of Putnam’s studios including Universal Recording in Chicago and United Western in Los Angeles. Many prominent engineers such as Bruce Swedien began their careers in these studios with this classic rotary knob console. The UA 610 was particularly well noted for its preamplifier, and has left its mark on countless classic recordings from Sinatra to Pet Sounds to Van Halen to LA Woman.

We carefully modeled the UA 2-610 after the microphone amplifier section of the 610 console. Unlike many vintage “style” mic pres, the 2-610 is true to the design of its predecessor. Our expertise in analog design translates into a classic tube preamplifier with all of the character of its vintage predecessor, yet designed for the requirements and rigor of the modern studio. We’ve taken great care to preserve the quality and character of the original, while adding functionality with more boost/cut settings, phantom power, direct inputs and impedance controls.

The Universal Audio 2-610 Mic Pre is the perfect tool for tracking and ideal when used in conjunction with a Universal Audio compressor such as the 1176LN and Teletronix LA-2A. Whether you’re running pure analog or seeking to enhance your digital audio workstation, the 2-610 will bring classic tube character to your recording.


– Classic Sound of the Legendary 610 Modular Console

– Variable Input Gain and Output Levels

– Ultra Quiet Operation

– Mic, Balanced Line, and Hi-Z Inputs

– Multiple Impedance Settings

– Classic EQ – Custom Wound Double Sized Alloy Transformers

Connections & Controls

Inputs   Microphone (Female XLR) Balanced Line (Female XLR) Unbalanced Line/Instrument (1/4″ jack) (D.I.)

Outputs   Balanced Line (Male XLR)

Input Select

  Microphone: 500 ohm, 2 kOhm Balanced Line Hi-Z instrument: 47 kOhm, 2.2 MOhm Variable Gain (Input Feedback Control)   5 dB increments @ -10, -5, 0, +5, +10 dB Output Level Control   Attenuation

HF Shelf EQ Switchable boost/cut: 1.5, 3, 4.5, 6, 9 dB Corner Frequency Select: 4.5 kHz, 7 kHz, 10 kHz

LF Shelf EQ   Switchable boost/cut: 1.5, 3, 4.5, 6, 9 dB Corner Frequency Select: 70 Hz, 100 Hz, 200 Hz

Other   Polarity Reverse Switch 48 Volt Phantom Power Switch

Technical Specifications

Input Impedance   Microphone (selectable)      500 ohms or 2K ohms Balanced Line      13.8K ohms Hi-Z (selectable)      2.2 Meg ohms or 47K ohms Maximum Microphone Input Level   +3.5dBu

Maximum Output Level   +20dBm

Internal Output Impedance   60 ohms

Recommended Minimum Load   600 ohms

Frequency Response   20Hz to 20kHz +/- 1 dB

Max Gain   61 dB

Siginal to Noise Ratio   Greater than 82 dB

Vacuum Tubes   one 12AX7A and one 6072A per channel

Power Requirements   115/230 volts

Weight   11.75 lbs.

Dimensions   19″ Rackmount chassis, 2U

Additional information

Weight 9.9999 kg