ART Pro Audio Pro VLA II Two Channel Vactrol-Based Compressor

Capable of delivering a far more musical natural sounding and sonically transparent compression than competitive units in its class, the ProVLA II uses an Opto-electronic circuit rather than the more typical design VCA driven level detection circuit.

This VCA-less design coupled with a 12AT7 vacuum tube in the gain stage makes the Pro-VLA II the ideal dynamic control device for critical audio applications.

Exceptional signal integrity with extremely low noise and low distortion is achieved in the ProVLA II by utilizing a transformerless design throughout.

Features

• VCA-Less Vactrol Opto-Compression Design
• Mastering Quality Audio Signal Path with Tube Gain Stage 
• Enhanced Link Mode – While in stereo link mode, channel 1 level control acts as a master output level and channel 2 becomes a balance control between them, – optimizing the Pro-VLA II for use as a mastering tool
• Variable Threshold, Ratio & Output Controls
• LED Backlit VU Input/Output Level Metering
• LED Metering Indicates Both Average Level And Peak Hold
• Accurate Ten Segment LED Gain Reduction Metering
• +4dBu/-10dBu Mode Switch Optimizes Pro-VLA II For Interface with Professional OR Consumer Grade Components
• Active Balanced XLR And 1/4-Inch Inputs & Outputs
• Toroidal Transformer Reduces Mechanical & Electrical Hum

Specifications

• Equivalent Input Noise: @+4dBu: -99dBu (”A” weighted) / @-10 dBV: -107dBu (”A” weighted)
• Maximum Attenuation: 30dB
• Input Impedance: 10K O
• Maximum Input Level: +20dBu (in +4dBu mode) / +10dBV (in -10dBV mode)
• Maximum Output Level: +20dB max
• Frequency Response: 10Hz to 100KHz (+/- 0.5dB)
• Dynamic Range: > 100dB (20-20KHz)
• Attack Time: 0.25msec. to 50msec. variable
• Release Time: Variable 150ms to 3s
• Slope: Variable 2:1 to 20:1
• Total Harmonic: Distortion <0.1% (typical)
• Dimensions: 3.5? x 19? x 9.2? (8.9cm x 48.3cm x 23.3cm)
• Weight: 10.5lbs (4.76kg)