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Aphex 722 Dominator II Peak Limiter

Aphex 722 Dominator II - Stereo MultiBand Peak Limiter with Switchable Pre and De-emphasis Curves for Broadcast Applications

Aphex 722 Dominator II - Stereo MultiBand Peak Limiter with Switchable Pre and De-emphasis Curves for Broadcast Applications

B&H # AP722 MFR # 722
Aphex 722 Dominator II Peak Limiter

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Overview
  • 1Description

The 722 Dominator II is a stereo multi-band peak limiter designed to fit a wide range of applications where transparency of limiting action is absolutely critical, while preventing peak levels from exceeding the user settable output level. At virtually any limiting depth, the unit is free of frequency degradation and most other side-effects normally associated with limiters.

A very common problem with wide-band processing is where one part of the audio spectrum controls the level of another part. If there is a large concentration of lower frequencies, these will tend to control the level of the entire spectrum.

The unit solves these problems by splitting the audio into three frequency bands and limiting each band individually with the outputs of the bands being summed and sent to a detector circuit. If the sum exceeds a reference value, the circuit reduces the thresholds of the individual limiters.

Pre-emphasis is an equalization curve that is employed as a noise reduction technique for broadcast and transmission links. The model 722 Dominator II has separately switchable pre and de-emphasis curves.

Three bands of limiting with Switchable Crossover Frequencies
Servo balanced transformerless inputs and outputs
Patented Automatic Limit Threshold (ALT) circuitry
Peak ceiling trimmable in 0.2dB steps over a 34dB range
LF and HF EQ provides shaping equalization below peak ceiling
Freedom from pumping
Freedom from Spectral Gain Intermodulation
Adjustable density (relative crest height)
Relay bypass, remote controllable
In the Box
Aphex 722 Dominator II - Stereo MultiBand Peak Limiter with Switchable Pre and De-emphasis Curves for Broadcast Applications
  • AC Power Cable
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
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    Specifications
    Function Multi-Band peak limiter
    Number of Channels 2
    Inputs 2 x XLR
    Output 2 x XLR
    Maximum Input Level +26dBu
    Compression Threshold Not applicable
    Compression Ratio Not applicable
    Attack Time Not applicable
    Release Time 150 mSec to 7 sec
    Gate Threshold Not applicable
    Gate Rate Not applicable
    Maximum Output Level +25dBu when set for +4dBu operation
    Make-up Gain Not applicable
    Frequency Response 4.5Hz to 50kHz
    Dynamic Range >108dB
    Noise > -82dB when set for +4dBu operation
    Dimensions 1U rack mount, 9 5/8" deep
    Specialties Low frequency crossover frequency points: 100Hz, 210kHz
    High frequency crossover frequency points: 1.7kHz, 3.4kHz
    RJ-11 connector on the rear panel facilitates remote relay bypass of the unit
    Packaging Info
    Box Dimensions (LxWxH) 25.0 x 14.1 x 4.0"

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