The Pro VLA by ART is a tube driven Vactrol-based Compressor/Leveling amplifier designed to excel in any professional audio application including tracking mixing mastering live sound or broadcast situations. By using an opto-electronic design (as opposed to a more typical VCA driven level detection circuit) the Pro VLA II allows more compression to be added to an audio source with a more natural musical sounding output and virtually transparent dynamic leveling. This VCA-less design coupled with a 12AT7 vacuum tube in the gain stage makes the Pro VLA II tube compressor the ideal dynamic control device for critical studio and live sound applications.
In Depth
- Vactrol Opto-compression design (No VCA) - Mastering-quality audio signal path with tube gain stage - Enhanced link mode - Variable threshold ratio and 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/-10dBV mode switch - Active-balanced XLR and 1/4" inputs and outputs - Toroidal transformer reduces mechanical and electrical hum - 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
Maximum levels: - Range switch: +4dBu/-10dBV selectable - Inputs: +20dBu (in +4dBu mode) / +10dBV (in 10dBV mode) - Output: +20dBu (R load > 10K 0.1%THD) - Output Gain: +20dB max
- Frequency response: 10Hz to 100KHz (+/- 0.5dB) - Dynamic Range: >100dB (20-20KHz) - THD: @ 0dBm Out <0.1% (typical)
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