avalon-design ad2077 Scheda Tecnica

Pagina di 2
AD2077
M A S T E R I N G   E Q U A L I Z E R
Pure Class A  music recording systems since 1985. 
  200
2
 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
c
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence   
D E S I G N
AVA L O N
P
U R E
 
C
L A S S
 
A     M
U S I C
 
R
E C O R D I N G
 
S
Y S T E M S
A D 2 0 7 7     F E A T U R E S
SONIC EXCELLENCE
The Avalon AD2077 Pure Class A mastering equalizer is 
the most advanced, low noise, fully switched parametric 
equalizer available today. Designed for absolute signal 
integrity and musical performance, the AD2077 combines 
the best active and passive filter topologies for sonic 
excellence unequaled by lesser designs. 
The AD2077 is the perfect solution for two buss music-
program equalization and ultra-high performance analog 
mastering applications. Features include state-of-the-art, 
balanced 100% discrete, Pure Class A signal amplifiers, 
practical user features and rugged hardware designed to 
deliver true high performance audio for many years.  
PASSIVE-ACTIVE FILTER DESIGN
Avalon equalizers feature the unique combination of both 
active and passive EQ filters. This special combination 
enables the AD2077 to deliver high speed transient detail 
at the operational extremes of real-world equalization 
demands. The passive high and low bands offer alternate 
musical tone range to the full function active parametric 
mid bands. Passive equalizers have long been a favorite 
with music lovers around the world..full bodied, powerful 
(up to +/-20dB, 40dB range !) and sweet frequency 
selections are the benefits of the passive high-low EQ 
bands. The full bandwidth twin mid bands provide switched 
frequency selection (X10 frequency multipliers for very 
wide range), switched Q (width) and amplitude control.  
MINIMUM SIGNAL PATH DESIGN
Avalon's true symmetry design offers high-voltage, large 
headroom, extended bandwidth and very
low noise. The use of 100% discrete, Pure Class A signal 
amplifiers give the serious mastering engineer unlimited 
sonic character and a natural harmonic detail that 
enhances the program material and becomes one with
the music itself.
 AVALON
 DESIGN
Minimum audio signal path
Dual mono, fully switched controls
Transparent active and passive filter design
Very low noise -94dB
High headroom +30dB 
Fully balanced inputs and outputs
DC coupled, no transformers in audio path
104 switched frequencies per channel
Mid bands use X10 frequency for extended range
Wide bandwidth -3dB 1Hz to 450kHz
Low distortion less than 0.5% THD and IMD
Switched range control 0.5dB, 1dB and 2dB steps
All signal routing with sealed silver relays 
100% discrete power supplies for audio path
External 150W toroidal power supply 
AVALON DESIGN   PURE CLASS A   AD2077 DUAL MONO, MASTERING EQUALIZER