Seventy Sixer Compressor

Seventy Sixer Compressor

The Urei / Universal Audio 1176 is a classic FET limiting amplifier, first released in the late 1960s and still a studio standard for adding punch, sustain, and polish. It can be nearly transparent or aggressively colored, including the well-known all-buttons-in ratio trick. Seventy Sixer is the Tone Master Pro model based on that compressor, with input, output, attack, release, ratio, a parallel dry blend, and a VU meter.

Fender Model Guide

A studio-style compressor capable of everything from transparent dynamic control to aggressive, character-rich compression. Excellent for adding punch, sustain and polish to guitar, bass and other sources.

  • INPUT Adjusts overall input signal strength.
  • OUTPUT Adjusts overall output signal strength.
  • ATTACK Adjusts time taken for compression to engage once signal exceeds the threshold.
  • RELEASE Adjusts time taken for compression to stop once signal falls below the threshold.
  • DRY Adjusts amount of dry signal blended in parallel to compressor.
  • RATIO Adjusts amount of gain reduction the compressor applies when signal passes the threshold. Options are 4, 8, 12 or 20. Press any currently selected option again for the classic “All Buttons On” studio trick for a harmonically rich, pumping compression.
  • METER Determines which signal drives the onboard VU meter. Options are GR, indicating amount of Gain Reduction, or Output, indicating output level.
  • GR OFF Turns off the gain reduction function while still letting the signal pass through the effect, which imparts a tone on the signal.

From the Fender Tone Master Pro Model Guide

Based on
Universal Audio 1176 Limiting Amplifier
Effect type
Compressor
Real gear released
1967

Unofficial fan reference by Worship Calling. Not affiliated with or endorsed by Fender. Tone Master Pro is a trademark of Fender Musical Instruments Corporation. Other product names belong to their owners and are used only to identify the gear each model is based on. Details are a guide, so check the Fender manual for exact controls.