AD2044 FEATURES 
Smooth musical detail and sonic excellence

Minimum audio signal path

Pure Class A, 100% discrete design

Dual mono or Stereo operation

Transparent, non-invasive compression

Very low noise -94dB

High headroom +30dB

Fully balanced inputs and outputs

Long lasting, stainless steel hardware

External 150W toroidal power supply

100% discrete power supplies for audio path

All signal routing w/sealed silver relays

External side-chain access XLR

Low distortion less than 0.5% THD and IMD

Wide bandwidth -3dB 1Hz to 450kHz

Large accurate professional VU meters

Variable threshold, ratio, attack & release

DC coupled, no transformers in audio path

Fully balanced inputs and outputs 

SONIC EXCELLENCE
The Avalon AD2044 Pure Class A opto-compressor is the most transparent, low noise optical-compressor available today. Designed to optimize absolute signal integrity and musical performance, the AD2044 combines advanced electronics with sonic excellence unequaled by lesser designs. The AD2044 is the perfect solution for two buss music-program compression, mono bass and instruments and  mastering applications.

Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers, practical "real-world" user features and rugged hardware designed to deliver true high performance audio for many years. 

 

LINEAR OPTICAL COMPRESSION
Custom manufactured, high speed linear opto elements provide the non invasive passive attenuator system for invisible gain reduction. The AD2044 incorporates a unique external control loop and current monitored optical driver for smooth control plus the benefits of traditional vintage LDR compression.

 

MINIMUM SIGNAL PATH DESIGN
Avalon's 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 the serious music professional unlimited sonic character and a natural harmonic detail that enhances the program material and becomes one with the music itself.

The AD2044 can be found in the world's leading recording studio's, mastering facilities and artist/producers outboard racks. These professionals rely on the AD2044 daily to help them complete their "sonic signature" and turn recordings into musical masterpieces.

 

AD2044 SPECIFICATIONS
Circuit topology  High-voltage 100% discrete, balanced and symmetrical Class A 
Output Gain Range  Variable -10dB to +10dB, center detent 0dB 
Maximum Input Level  +30dB balanced XLR pin 2 hot 
Maximum Output Level  +32dB balanced 600 ohms, DC coupled, high-current discrete Class A 
Input / Output Type  XLR type, pin 2 hot balanced 
Noise 20kHz Unweighted  -94dB (compressor in) 
Distortion THD, IMD  0.5% (typical 0.05% at +6dB 1kHz) 
Frequency Response -3dB  1Hz to 450kHz (input band limited) 
Gain Reduction Meter  Illuminated gain reduction meter 0dB to -20dB range 
Output Meter  Professional moving coil type -20dB to +3dB  (0VU=+4dB) 
Compressor Type  Optical passive attenuator 
Bypass  Hard-wire relay bypass for compressor in-out 
Link Switch  Large illuminated push switch for stereo L-R linking 
Make Up Gain  Variable 20dB range (-10dB to +10dB) 
Threshold  Threshold variable -24dB to +20dB 
Ratio  Ratio-compression variable 1:1 to 20:1 
Attack  Variable 0.5mS to 150mS 
Release   Variable 80mS to 5 seconds for 12dB release 
Side-Chain  XLR type, pin 2 hot balanced (switch/relay selectable from front panel) 
AC-DC Power  External AC supply, 150w toroidal transformer, 4 pin cable 90v isolated, 
(B2T Power Supply Included)  100-240v selectable 50/60Hz, 150w max 
Dimensions  19 x 3.5 x 12 in (482 x 88 x 305mm) 
Shipping Weight  30lbs (13.6 kg)