Igor’s clone of the EMI TG-12413 Zener Limiter for the 51x Alliance format. Igor’s version hews as closely to the original EMI schematic as possible, with a few modern additions. Because of the “beastly” requirements of this unit, Igor’s module is compatible only with the 51x Alliance racks (not 500-series) and requires two slots.

Features:

• Stereo link option
• Employs a Lundahl LL1524 transformer
• Compressor and Limiter modes
• Gain reduction meter
• New features:
• Side chain high-pass filter
• Hold and Attack controls
• 11 Release positions

Price:
No longer available.

• $560 + shipping for mono kit
• $1,070 for stereo kit (includes shipping)
• Kits available only until 9/20/2012

More info:

• Igor’s GroupDIY development thread