ART Pro VLA II Professional Two Channel Compressor

 

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Dale #:ART-PROVLAII

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  • The ProVLA II is a tube driven Vactrol-based Compressor / Leveling amplifier designed to excel in any professional audio environment. Superior performance and an incredible tone makes the ProVLA II and indispensable tool for tracking, mixing, mastering, dynamic control of live sound sources or for use in broadcast audio.

    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.

    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 Î_-Inch Inputs & Outputs
    • Toroidal Transformer Reduces Mechanical & Electrical Hum

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

    Vactrol Technology
    Unlike typical compression units that use Voltage Controlled Amplifiers (VCA's) to handle level detection, the Pro VLA II's Opto-electronic design allows a far more transparent and musical sounding compression without sounding aggressive or un-natural. This Vactrol based optical electronic circuitry is the basic component of the classic highly sought after compressors of past.

    Vactrol design allows the ProVLA II to react to audio signal in much the same way the eye naturally adjusts to fluctuations in light levels "– smoothly, quietly and almost imperceptibly.

    Soft Knee Leveling
    The ProVLA II is a soft knee leveling amplifier by design. Although capable of providing dramatic compression effects, the ProVLA II was designed to excel in any application where transparent, expressively musical dynamics control is desired.

    Comprehensive Metering
    Large highly visible backlit analog VU meters accurately display input and output levels while extremely fast 10-segment LED's display gain reduction. For added functionality, the LED's display either average level for mastering & mixing applications or peak hold for monitoring individual sources when tracking audio.

    Versatile I/O
    XLR and 1/4-inch TRS balanced inputs and outputs are provided to ensure the ProVLA II can connect with any audio source or hardware. A +4dBu/-10dBu mode switch optimizes ProVLA II I/O for either consumer or professional equipment.

    ART Tube Compressors deliver analog leveling/compression designed to work seamlessly with any recording, sound-reinforcement, and electronic instrument application. Our Tube Compressors excel at making tracks sound rich and full for both live audio engineering and studio recording applications.

    ART's tube compression circuitry is a hybrid design utilizing the latest and most advanced analog and tube technology, and has exceptional signal integrity with extremely low noise.

    ART tube compressors utilize optical electronics (a device known as a Vactrol), coupled with a 12AT7 vacuum tube gain stage for superior musical performance. Unlike typical compressors which use VCAs to control level detection, ART tube compressors are very musical, expressive and natural sounding.

  • Attack Time

    0.25msec. to 50msec. variable

    Dimensions

    3.5in x 19in x 9.2in / 8.9cm x 48.3cm x 23.3cm

    Dynamic Range

    greater than 100dB (20-20KHz)

    Equivalent Input Noise

    @+4dBu: -99dBu (''A'' weighted) / @-10 dBV: -107dBu (''A'' weighted)

    Frequency Response

    10Hz to 100KHz (+/- 0.5dB)

    Input Impedance

    10K Ohms

    Maximum Attenuation

    30dB

    Maximum Input Level

    +20dBu (in +4dBu mode) / +10dBV (in –10dBV mode)

    Maximum Output Level

    +20dB max

    Release Time

    Variable 150ms to 3s

    Slope

    Variable 2:1 to 20:1

    Total Harmonic Distortion

    less than 0.1% (typical)

    Weight

    10.5lbs / 4.76kgs

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