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1176LN Classic Limiting Amplifier
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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.

  • FET-Style Compressor with Class A Output & Custom Transformers
  • True to the original 1176 in design, manufacturing and performance
  • Ultra fast attack time – 20 microseconds to 800 microseconds

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.

Technical Specifications

1176LN Classic Limiting Amplifier


  • 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.

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