Eventide Omnipressor (1970s–2023)

A professional-grade dynamics processor that combines compression, expansion, noise gating, and limiting in one unit. Reissued after a 50-year gap.

Overview

The Eventide Omnipressor is a dynamics processor that first appeared in the early 1970s. It was the first effects unit of its kind. It combines a compressor, expander, noise gate, and limiter, and gives you unusual control over dynamic range. The original was discontinued after only a few years of production, which is why it's a rare classic today. In October 2023, Eventide reissued it as the 50th Anniversary Omnipressor 2830*Au. The reissue is a rack-mount unit built to replicate the analog behavior 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. Its level detector has selectable frequency response, including a NOR position that matches the full signal path. It can also apply negative compression ratios, a feature that comes up often in technical discussions. The reissue is rack-mount with transformer-balanced outputs, and it keeps the original's core topology and functionality.

Context

The Omnipressor launched in the early 1970s and was discontinued after a short production run because of trouble sourcing exclusive components. It stayed out of production for approximately 50 years. Eventide reissued it in October 2023 as part of its 50th-anniversary lineup. The reissue was announced across multiple pro audio outlets and is available through Eventide and authorized dealers.

Market

The original Omnipressor is considered a rare classic, and there is no current market pricing data 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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