ART - Pro VLA II Rackmount Compressor
ART - Pro VLA II Two Channel Vactrol-Based Compressor, VCA-Less Vactrol Opto-Compression Design with Tube Gain Stage
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ART - Pro VLA II
Two Channel Vactrol-Based Compressor
designed to excelThe ART ProVLA II is a tube driven Vactrol®-based Compressor and Leveling amplifier designed to excel in any professional audio setting. Incredible performance and a stunning tone makes the ProVLA II a great tool for tracking, mixing, mastering, dynamic control of live sound sources or for use in broadcast audio.
Capable of providing a far more musical natural sounding and sonically transparent compression than other units in its class, the ProVLA II features an Opto-electronic circuit rather than the more typical design VCA driven level detection circuit. This VCA-less design together with a 12AT7 vacuum tube in the gain stage makes the Pro-VLA II the perfect dynamic control device for crucial audio applications.
Stunning signal integrity with impressively low noise and low distortion is found in the ProVLA II by utilizing a transformerless design throughout.
Amazing Features
• VCA-Less Vactrol Opto-Compression Design
• Mastering Quality Audio Signal Path with Tube Gain Stage
• LED Metering Indicates Both Average Level And Peak Hold
• Toroidal Transformer Reduces Mechanical & Electrical Hum
• LED Backlit VU Input/Output Level Metering
Advanced Modern Technology
Vactrol® TechnologyThe Pro VLA II’s Opto-electronic design offers a much 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 enables 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 LevelingThe ProVLA II is designed as a soft knee leveling amplifier. Although it can offer dramatic compression effects, the ProVLA II was designed to work incredibly well in any application where transparent, expressively musical dynamics control is required.
Comprehensive MeteringLarge highly visible backlit analogue VU meters display the input and output levels accurately while extremely fast 10-segment LED’s display gain reduction. For extra functionality, the LED’s display either average level for mastering & mixing applications or peak hold for monitoring individual sources when tracking audio.
Versatile I/OXLR and 1/4-inch TRS balanced inputs and outputs are included 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.
The Tech Spec
| Features | Specifications | Equivalent Input Noise | @+4dBu: -99dBu (”A” weighted) / @-10 dBV: -107dBu (”A” weighted) |
|---|---|
| Maximum Attenuation | 30dB |
| Input Impedance | 10K Ω |
| 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) |
