AVALON AS2044 DUAL MONO-STEREO.PURE CLASS A OPTO-COMPRESSOR

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3,050.40 2,928.38 incl. GR VAT

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The AD2044 features 100% discrete, pure class A signal amplifier configured with high speed current monitored optical control elements. These “invisible” opto elements enable the AD2044 to deliver totally transparent, low noise gain reduction within the minimalist signal path design. No VCAs are incorporated. Variable attack and release controls plus side chain access, provide unlimited […]

 

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The AD2044 features 100% discrete, pure class A signal amplifier configured
with high speed current monitored optical control elements. These “invisible”
opto elements enable the AD2044 to deliver totally transparent, low noise gain
reduction within the minimalist signal path design. No VCAs are incorporated.
Variable attack and release controls plus side chain access, provide unlimited
creative control from soft compression to hard limiting.

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) 
 

Weight 13.60 kg

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