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Anthony DeMaria Labs

Anthony DeMaria Labs ADL OPUS-3

Solid-state broadcast optical compressor/limiter

Compressor / Limiter

Price not published

Specifications

Type
Compressor / Limiter
Description
Solid-state broadcast optical compressor/limiter
Topology
solid-state, discrete, fixed-gain, optical (opto attenuator), transformer in/out — NOT tube (only non-tube unit in ADL's current line)
Signal path
Analog
Channels
2
Channel format
dual mono, can be operated as a stereo pair or two independent mono channels via stereo-link jacks
Form factor
Half-rack (2U height, half-width)
Rack units
2
Power (W)
6
Frequency response
20 Hz – 20 kHz ±1 dB
Impedance (Ω)
600
Introduced
2015
Country of manufacture
USA

Details

Controls: Continuously variable gain and peak-reduction controls; GR/Output switch with VU meter; Limit/Compression switch (3:1 compression to 8:1 limiting); Normal/Pad switch (-14dB attenuation); stereo/mono link switch; bypass switch

I/O: Transformer-balanced in/out, 600-ohm

Notes: FLAGGED: unlike the rest of ADL's current lineup, the OPUS-3 is all-solid-state (not tube); ADL describes it as 'a close cousin to our world famous ADL vacuum tube 1000 and 1500,' sharing the same hand-matched optical attenuator component. Dimensions 3.5" x 7.75" x 10.5" (half-rack width, ~2U height), shipping weight 7 lb. Third-party retail listings often describe/sell it as a 'stereo pair,' consistent with its dual-mono/stereo-linkable design. Price not published by manufacturer.

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