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The black and orange AD2044 Dual Mono-Stereo, Pure Class A Opto-Compressor from Avalon Design features a discrete, pure Class A signal amplifier. The invisible opto elements enable the AD2044 Compressor to deliver totally transparent, low noise gain reduction within the minimalist signal path design (no VCAs are incorporated). The variable attack and release controls plus side-chain access provide unlimited creative control from soft compression to hard limiting.
Designed to optimize absolute signal integrity and musical performance, the AD2044 Compressor combines advanced electronics with sonic excellence. This compressor is a suitable solution for 2 buss music-program compression, mono bass and instruments, and mastering applications.
The AD2044 Compressor is a rugged hardware designed to deliver high-performance audio. The custom-manufactured, high-speed linear opto elements provide the non-invasive passive attenuator system for invisible gain reduction. The AD2044 incorporates an external control loop and current-monitored optical driver for smooth control plus the benefits of traditional vintage LDR compression.
The advanced true symmetry design offers high voltage, large headroom, extended bandwidth, and very low noise. The use of 100% discrete, pure Class A signal amplifiers offer unlimited sonic character and a natural harmonic detail that enhances the program material.
Smooth musical detail and sonic excellence
Minimum audio signal path
Pure Class A, discrete design
Dual mono or stereo operation
Transparent, non-invasive compression
Low noise of -94 dB
High headroom of +30 dB
Fully balanced inputs and outputs
Long lasting, stainless-steel hardware
External 150W toroidal power supply
Discrete power supplies for audio path
All signal routing with sealed silver relays
External side-chain access XLR
Low distortion less than 0.5% THD and IMD
Wide bandwidth of -3 dB, 1 Hz to 450 kHz
Large accurate professional VU meters
Variable threshold, ratio, attack, and release
DC coupled, no transformers in audio path
Hard-wire relay bypass for compressor in-out
Large illuminated push switch for stereo L-R linking
In the Box
Avalon Design AD2044 Dual Mono-Stereo, Pure Class A Opto-Compressor (Black & Orange)
Limited 1-Year Warranty
Table of Contents
Optical passive attenuator
XLR type, pin 2 hot balanced
XLR type, pin 2 hot balanced
Maximum Input Level
30 dB balanced XLR pin 2 hot
-24 to +20 dB
1:1 to 20:1
0.5 to 150 ms
80 ms to 5 sec for 12 dB
Maximum Output Level
32 dB balanced 600 Ohms, DC-coupled, high-current discrete Class A
Variable 20 dB range (-10 to +10 dB)
1 Hz to 450 kHz (Input band limited) at -3 dB
20 kHz Unweighted: -94 dB (Compressor in)
XLR type, pin 2 hot balanced (switch/relay selectable from front panel)
High-voltage 100% discrete, balanced, and symmetrical Class A
Variable: -10 to +10 dB, center detent 0 dB
0.5% (Typical 0.05% at +6 dB 1 kHz)
Gain Reduction: Illuminated gain reduction meter 0 to -20 dB range
Output Meter: Professional moving coil type -20 to +3 dB (0 VU = +4 dB)
External AC supply, 150 W toroidal transformer, 4-pin cable 90 V isolated
100 to 240 VAC selectable 50 / 60 Hz, 150 W maximum
19.0 x 3.5 x 12.0" (482.0 x 88.0 x 305.0 mm)
17.0 lb (7.7 kg)
Avalon Design AD2044 Dual Mono-Stereo, Pure Class A Opto-Compressor (Black & Orange) Review