Anthony DeMaria Labs ADL 1000
Mono tube optical compressor/limiter
Compressor / LimiterPrice not published
Specifications
- Type
- Compressor / Limiter
- Description
- Mono tube optical compressor/limiter
- Topology
- all-tube/valve, optical (hand-matched opto attenuator), transformer-balanced, no ICs/chips
- Signal path
- Analog
- Channels
- 1
- Channel format
- mono (stereo-linkable by pairing two units)
- Form factor
- 2U rack
- Rack units
- 2
- Frequency response
- 15 Hz – 30 kHz ±0.5 dB
- Impedance (Ω)
- 600
- Introduced
- 1988
- Country of manufacture
- USA
Details
Controls: Gain, gain-reduction/threshold; attack ~10μs, release 0.07–4s (per tech specs); stereo-link switch
I/O: Balanced XLR in/out, 600-ohm; also works with unbalanced systems; stereo-link capability
Notable use: Shawn Colvin, Eric Harrington (Atlantic Records), David J. Frangioni (Aerosmith, Extreme), Sunset Sound Factory studios
Notes: ADL describes it as 'similar in design to an LA-2A' — FLAGGED classic reference: Teletronix LA-2A (opto compression lineage). Tube complement: 2x12AX7A, 1x12BH7A, 1x6AQ5A. Gain reduction 40dB max, gain 40dB ±1dB, clip +22dBu. Shipping weight 13 lb. This was ADL's original product (per company history, DeMaria's first opto design evolved into the 1000, sold since 1988). Third-party retail sources have cited street prices around $2,200, but not manufacturer-published, so price_usd left blank per golden rule.