Aphex 320D Compellor Stereo Audio Level Controller

 

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Dale #:APHE-320D

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  • The patented technologies within the 320D are totally unique. By going beyond conventional design ideas, the 320D provides audio processing with unprecedented sound transparency, yet is exceedingly effective at controlling levels. No other product can match the performance of the 320D. Algorithms like our “DVG”, “DRC”, and “FDL” have yet to find any rivals. The 320D’s Frequency Discriminate Leveler section, with the Dynamic Verification Gate and the Silence Gate, slowly adjusts the volume level of an audio stream with very complex algorithms that hide its work. It works differently at different frequencies and stops processing when the sound stops then resumes instantly when the sound reappears so there is no distracting increases in program background noise. When you listen, you know the levels are made more even, but you don’t perceive the levels are shifting.

    The 320D’s Variable Slope Compressor, Dynamic Recovery Computer and Dynamic Verification Gate add adaptable compression to match the texture of changing audio sources. You don’t hear pumping or other audio artifacts, just natural sound that is evenly consistent in loudness. The 320D’s limiter acts on peaks that shoot beyond average program levels so they are easy to handle by any analog or digital recording system. The 320D can act as two independent mono processors or one linked stereo processor by front panel selection. This is true with both analog and digital I/O.

    When the analog input is used, the digital output contains the 320D’s processing. When the digital input is used, the analog output contains the 320D’s processing, properly leveled. Aphex builds products that last and last without need for repairs or calibration. Some Compellors have literally been in 24 hour use in the same rack for a decade, or longer! When you specify a Compellor, you know it will do its job flawlessly and give you peace of mind.

    Features:

    • Broadcast pre-processing
    • MP3 Encoding and playback
    • Recording
    • Installed and Mobile sound
    • DAW input
    • Mastering
    • Satellite uplinks
    • Background Music
    • Ham Radio
    • Tape Duplication
    • Cable TV
  • NOMINAL OPERATING LEVEL:+4dBu -10dBV
    ANALOG INPUTS
    Connector3 pin XLR Female
    TypeTransformerless servo balanced RFI filtered
    Impedance22k ohms balanced, 11k ohms unbalanced
    Operating Leveluser selectable +4dBu or -10dBv
    Max input level+27dBu (ref = +8); +25dBu (ref = +4) +10dBV (ref = -10)
    CMRR >90dB at 100Hz >70dB at 1kHz >50dB at 20kHz
    DIGITAL INPUTS
    Connector3 pin XLR female
    TypeTransformer balanced
    Impedance110 ohms
    ANALOG OUTPUTS
    Connector3 pin XLR Male
    Typeelectronic servo balanced (unbalanced without 6dB loss)
    Impedance65 ohms bal or unbal (nominal load 600 ohms or greater)
    Max level out (bal)+25dBu (ref = +4) +10.8dBV (ref = -10)
    Max level out (unbal)+20dBu (ref = +4) +10.8dBV (ref = -10)
    DIGITAL OUTS
    Connector3 pin XLR Male
    TypeTransformer balanced
    Impedance110 ohms
    AUDIO
    Frequency Response±1dB 10Hz to 65kHz
    Hum and noise (1k tone at unity gain)
    No gain reduction-67 dBu (ref = +4) -86dBV (ref = -10
    10dB gain reduction74 dBu (ref = +4) -89dBV (ref = -10)
    Crosstalk at 20kHz-65 dBu (ref = +4) -78dBV (ref = -10)
    Dynamic THDtypically .05% for 1kHz at 20dB gain reduction
    Static THD.025% at maximum output level
    IMD, max output.13% (ref = +4) .4% (ref = -10)
    SYSTEM FUNCTIONS
     Compression
     Frequency Discriminate Leveling
     Peak Limiter
     Dynamic Verification Gate (DVG)
     Dynamic Recovery Computer (DRC)
     Silence Gate
     Stereo Enhance
    THRESHOLD
    Compressor30dB below nominal level
    Leveler30dB below nominal level
    Limiter14dB above nominal level
    RATIO
    Compressor1.1:1 to 3:1 program dependent
    Leveler20:1
    Limiter>30:1
    ATTACK TIMES
    Compressor5 to 50msec program dependent
    Leveler fast20Hz = 1.5 Sec >1kHz Frequency Discriminate Leveler
    Leveler slow 20Hz = 5 Sec >1kHz Frequency Discriminate Leveler
    Limiter1 uSec
    RELEASE TIMES
    Compressor200mSec to 1 Second program dependent
    Leveler fast3 sec
    Leveler slow10 sec
    Limiter200 msec
    DIGITAL AUDIO
    Input SRLocks to 32, 44.1,48, 88.2, 96kHz ±3%
    I/O TypeAES/EBU 110 ohms XLR
    Default Output SRUser definable by replacing crystal; 48kHz standard
    Word ClockNot Supported
    OTHER SPECIFICATIONS
    Power Requirements100 – 120 – 220 – 240 VAC, 50-60Hz 20 Watts
    Dimensions1.75″H x 19″W x 10.125″ D (44.5mm x 482.6mm x 257mm) (allow for wire dress)
    Net Weight8 lbs (3.6 kg)
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