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Universal Audio 1176 LN

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Product Description

1176LN Classic Limiting Amplifier
FET-Style Compressor with Class A Output & Custom Transformers — True to the Original

The 1176LN Classic Limiting Amplifier is a modern reproduction, yet every effort was made to remain faithful to UA founder Bill Putnam Sr.’s visionary design and intentions. The original UA 1176LN was a major breakthrough in limiter technology — the first true peak limiter with all transistor circuitry offering superior performance with a signature sound — and set the standard for all limiters to follow. The ultra-fast attack time and trademark sound have lured legendary artists and studio moguls alike to the 1176LN — Peter Frampton, Joe Satriani, Joe Chiccarelli, Vance Powell, and Mike Elizondo are just a few names on a list that’s continued to grow, for nearly 50 years.
Carefully trained staff hand-wire and test each unit until it meets our uncompromising standards. This Universal Audio Classic version of the 1176LN captures all the nuance of the original through obsessive attention to detail and delivers that trademark sound. Demand the original. Accept no copies.


  • True to the original in design, manufacturing and performance
  • Modeled after 1176LN, blackface, D and E revisions
  • Ultra fast attack time -20 microseconds to 800 microseconds
  • Class A line level output amplifier
  • Custom built Putnam-designed output transformer
  • Stereo interconnect operation
  • Hand-built in USA; backed by 1-year limited warranty

Technical Specifications:

Input Impedance
600 ohms, bridges-T control (floating)

Output Load Impedance
600 ohms, floating, damping factor 20

External Connections
Jones Barrier terminals and XLR connectors

Frequency Response
± 1 dB 20 Hz to 20kHz

50 dB

Less than 0.5% total harmonic distortion from 50 Hz to 15 kHz with limiting

Signal to Noise Ratio
Greater than 70 dB at +10 dBm

Attack Time
20 microseconds to 800 microseconds

Release Time
50 milliseconds to 1.1 seconds

Stereo Interconnection
via 1176 SA Network accessory

dB gain reduction and dB output

Power Requirements
120/240 V

Maximum operating temperature 160°F

19" Rackmount chassis, 2U

Weight (unboxed)
11 lbs.

Product Videos

Universal Audio 1176LN Compressor Demo 03:49

AUDIO: "'SOS (I've Got To Run)" by Chris Schlarb & Psychic Temple. Featuring electric bass by Steuart Liebig and drums by Tabor Allen. One of the few “studio classics” the Universal Audio 1176LN Limiting Amplifier can be found in almost every professional recording studio on the planet. Designed by Bill Putnam in 1968 and sold through his company UREI, the 1176 FET compressor has undergone almost ten revisions in the last half century. Fixed compression settings of 4:1, 8:1, 12:1, and 20:1 are augmented by full adjustable attack and release times. Interestingly the input knob also controls the threshold setting allowing the signal to be lightly or aggressively processed. Many engineers swear the by 1176 for vocal, guitar, bass, and snare drum duties. In fact, the 1176 is such a classic that no less than five different companies currently manufacture “clones” or copies of their own: Warm Audio WA76, Purple Audio MC77, Slate Pro Audio Dragon, Hairball Audio FET Compressor, & Mohog MoFET76.

  • Universal Audi...
    AUDIO: "'SOS (I've Got To Run)" by Chris Schlarb & Psychic Tem...

Warranty Information

Hand-built in USA; backed by 1-year limited warranty

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