1176LN Classic Limiting Amplifier

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key details

Legendary FET Compression – Lightning-fast attack (20–800 μs), release (50 ms–1.1 s), and Class A output stage for iconic tone.
Faithful Reproduction – Hand-built in the USA, modeled after the classic Blackface 1176LN (Rev D/E) with Putnam-designed output transformer.
Pro Specs – 50 dB gain, <0.5% THD, ±1 dB from 20 Hz–20 kHz, >70 dB SNR.
Studio-Ready Build – 19″ rackmount (2U), stereo link capability, XLR & barrier terminal I/O, 11 lbs.

Product details

Legendary FET compression with tone and attitude — true to the original.

Upon its release in 1967, the 1176 Limiting Amplifier became an instant classic because of its unique lightning-fast attack and release times, musical Class A output stage, and its wide range of sounds, ranging from subtle, near-transparent compression, to all-out drive and distortion.

Universal Audio’s 1176LN Classic Limiting Amplifier is a handbuilt, faithful reproduction of Bill Putnam Sr.’s original visionary design — an iconic piece of audio history that had a hand behind classic recordings from Led Zeppelin, The Rolling Stones, Michael Jackson, and more.

Rebirth of a Legend

In 1999, when Bill Putnam, Jr. relaunched Universal Audio, a reproduction of the Blackface 1176LN was the company’s first product. Reissued in 2000, it was based on the circuit designs of the C, D, and E revs of the classic 1176. One of the most critical aspects of recreating the sound of the original hardware, was faithfully reproducing the original output transformer, complete with the additional windings that provided the feedback signal to the final line output amplifier circuit. Bill Putnam Jr. found extensive design notes that enabled him to recreate and improve his father’s original design.

Push-Button Magic

One of the 1176’s famous features are its push-button selectable ratios of 4:1 and 8:1 for compression, and 12:1 and 20:1 for limiting. 1176 at 4:1, to its most notable setting, the “All Buttons In” mode, where all the ratio buttons are depressed simultaneously. This allows the 1176 to make a sound unlike any other processor ever heard before. Distortion increases, along with a plateaued slope and a lag time in response to initial transients, creating an explosive sound on drum room mics, fuzzing-out bass or electric guitar sound, or squeezing a vocal to bring it front and center of your mix.

Accept No Substitutes

Carefully trained Universal Audio staff hand build and test each unit at the UA Custom Shop in Santa Cruz, California 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.

Details

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

Specs

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

Gain

50 dB

Distortion

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

Meter

dB gain reduction and dB output

Power Requirements

120/240 V

Environmental

Maximum operating temperature 160°F

Dimensions

19″ Rackmount chassis, 2U

Weight (unboxed)

11 lbs.

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1176LN Classic Limiting Amplifier

key details

Product details

Legendary FET compression with tone and attitude — true to the original.

Rebirth of a Legend

Push-Button Magic

Accept No Substitutes

Details

Specs

Customers Reviews

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