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Retro Instruments

Retro Instruments Doublewide I Tube Compressor

500-series Tube Compressor

Compressor / Limiter

Price not published

Specifications

Type
Compressor / Limiter
Description
500-series Tube Compressor
Topology
all-tube/valve, variable-mu, complementary push-pull, two gain stages
Signal path
Analog
Channels
1
Channel format
mono
Form factor
500-series module (double-width, 2 slots)
Connection
500-series (API-format) rack
Powered
500-series rack supply, 180 mA (6 W)
Power (W)
6
Country of manufacture
USA

Details

Controls: Continuously variable Input and Output level (fixed threshold), continuously variable Attack and Recovery, Single/Double time-constant mode, hard-wire bypass switch

I/O: Fully floating, transformer-balanced line-level I/O via 500-series gold-plated edge-card connector

Notes: FLAG: brief description called Doublewide 'Pultec-style,' but it is actually a variable-mu tube COMPRESSOR (not an EQ) — classified accordingly as Compressor / Limiter, not Equalizer. Four NOS 6BJ6 variable-mu tubes in a fully complementary push-pull design, two Cinemag transformers, Simpson gain-reduction meter, side-accessible meter-zero trim, gold-plated edge-card connections. 'Hand built and tested in the U.S.' Still listed on the current products page alongside Doublewide II (not marked discontinued) as an entry-level option below it. Frequency response and price not published on manufacturer page.

Where to buy

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