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Tube-Tech

Tube-Tech CL 2A

Dual Opto Compressor

Compressor / Limiter

$5,250Manufacturer list price

Specifications

Type
Compressor / Limiter
Description
Dual Opto Compressor
Topology
all-tube, opto (optical/photocell gain reduction), transformer-balanced I/O
Signal path
Analog
Channels
2
Channel format
Dual mono / linkable stereo
Form factor
19-inch rack
Rack units
2U
Connection
Link jack for stereo/multi-unit linking
Powered
Yes (internal mains PSU)
Frequency response
5 Hz - 60 kHz @ -3 dB
Country of manufacture
Denmark

Details

Controls: Threshold (Off to -20 dBU), Ratio (1.5:1-10:1), continuously variable Attack/Release (max release 2s), Output Gain (Off to +10 dBU), Link switch, clickless relay switching, dual VU meters (GR/Out)

I/O: Balanced XLR in/out, transformer-coupled and fully floating; link jack for stereo/multi-unit operation

Notable use: Widely used as a musical, transparent problem-solver on vocals, keyboards, guitars, and mix bus

Notes: FLAG: opto-tube compressor (optical/photocell gain-reduction element). price_usd is a Sweetwater dealer-listed price, not a confirmed manufacturer MSRP; this figure matched the CL 1B search result exactly, which is a plausible coincidence (both often list near $5,250) but could not be independently cross-verified due to retailer site access limits - treat as approximate/unverified. Standard 19" rack unit, not 500-series.

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