IGS Audio Alter 500

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IGS Audio Alter 500

IGS Audio

Alter 500

4.9 Expert Rating

Product Info

Article Number: 386218
Model: Alter 500
Price: $834.90

* Prices may vary. Check retailer for current pricing and availability.

This IGS Audio Alter 500 nails the classic 1176 sound – that punchy, in-your-face compression. It’s a fantastic choice for rock, pop, and anything needing that aggressive glue, but be prepared for its focused character. If you're chasing that vintage vibe and have a 500 rack, this is a serious contender.

Product Description

IGS Audio Alter 500, 500 Module, FET compressor based on the Urei 1176, Stepped controls (with increment markings) for input / output and ratio, VU meter, Design: 500 module

PROS
  • • Excellent recreation of the 1176's aggressive character
  • • Robust metal chassis feels incredibly solid and well-built
  • • Stepped controls offer precise, repeatable compression settings
  • • VU meter provides clear, accurate gain reduction indication
CONS
  • • Can be overly aggressive for subtle, transparent compression
  • • Limited versatility compared to more modern, flexible compressors
  • • High-end price point may be prohibitive for some users

Product Video

Key Features

Module Type FET Compressor
Channels 2
Controls Input, Output, Ratio (Stepped)
Compatible Format 500 Series
Weight 2.5 lbs

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Frequently Asked Questions

It's a remarkably close recreation, capturing the core sonic signature, though subtle differences in component tolerances might exist.
They require a bit more deliberate adjustment, but once you understand the increments, repeatability is a real benefit.
While capable, its aggressive nature is better suited for tracking or mixing; mastering demands more transparent compression options.

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