avalon-design ad2044 Data Sheet

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AD2044
O P T O - C O M P R E S S O R
Pure Class A  music recording systems since 1985. 
  2000 by  AVALON INDUSTRIES, INC.  PO Box 5976, San Clemente, California, U.S.A.
Tel: 949-492-2000  Fax: 949-492-4284 
www.avalondesign.com
 email.avalon@avalondesign.com
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Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence   
D E S I G N
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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, mastering applications,
mono bass and instruments.
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
Computer matched, 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 (light dependant resistor) 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. 
 AVALON
 DESIGN
Minimum audio signal path
Dual mono or Stereo operation
Transparent, non-invasive compression
Very low noise -94dB
High headroom +30dB 
Fully balanced inputs and outputs
DC coupled, no transformers in audio path
Variable threshold, ratio, attack & release
Large accurate professional VU meters
Wide bandwidth -3dB 1Hz to 450kHz
Low distortion less than 0.5% THD and IMD
External side-chain access XLR
All signal routing with sealed silver relays 
100% discrete power supplies for audio path
External 150W toroidal power supply 
Long lasting, stainless steel hardware
AVALON DESIGN   PURE CLASS A   AD2044 DUAL MONO-STEREO OPTO-COMPRESSOR