Eventide Omnipressor (1970s–2023)
A professional-grade dynamics processor combining compression, expansion, noise gating, and limiting in one unit, reissued after a 50-year gap.
Overview
The Eventide Omnipressor is a dynamics processor originally introduced in the early 1970s as the first effects unit of its kind. It combines the functions of a compressor, expander, noise gate, and limiter, offering unique control over dynamic range. The original model was discontinued after only a few years of production, becoming a rare classic. In October 2023, Eventide reissued the unit as the 50th Anniversary Omnipressor 2830*Au, making it widely available once again. The reissued version is a rack-mount unit designed to faithfully replicate the analog characteristics of the original.
Specifications
| Product type | professional-quality dynamic modifier, combining the characteristics of a compressor, expander, noise gate, and limiter |
| Frequency Response | 20 Hz–20 kHz (±0.5 dB) |
| Output Impedance | 600 Ohms (Transformer Balanced) |
| Gain | -12 to +12 dB (Depending on Output Level) |
| Power Source | AC Input: 115 to 230 VAC, 50 / 60 Hz |
| Power Consumption | 10 W (Typical) |
| Width | 19 inches |
| Depth | 8.9 inches |
| Height | 3.5 inches |
| Weight | 14 lbs |
| Manufacturer Part Number | 1252-000 |
| Original Price (1974) | $600 |
| Reissue Price | $1,999.00 |
Design
The Omnipressor is an analog dynamics processor featuring a level detector with selectable frequency response behavior, including a NOR position that matches the full signal path. It includes the unique ability to apply negative compression ratios, a feature highlighted in technical discussions. The reissued model is a rack-mount unit with transformer-balanced outputs, preserving the original's core topology and functionality.
Context
Originally launched in the early 1970s, the Omnipressor was discontinued after a short production run due to difficulties sourcing exclusive components. It remained out of production for approximately 50 years before Eventide reissued the unit in October 2023 as part of its 50th-anniversary lineup. The reissue was announced across multiple pro audio outlets and is now available through Eventide and authorized dealers.
Market
The original Omnipressor is considered a rare classic, with no current market pricing data available for vintage units. The 50th-anniversary reissue is priced at $1,999.00. One original unit was noted as sold on soundgas.com, described as being in excellent cosmetic condition.
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