Dominator 722
  • Protect your hearing when using in-ear monitor solutions
  • Protect downstream inputs from overload during recording or broadcast
  • Amplifier and speaker protection for live sound
  • Loudness optimization for analog mastering
  • Includes pre- and de-emphasis for broadcast use

Higher Loudness Than Conventional Limiters While Maintaining Audio Quality

The Aphex Model 722 Dominator II is a stereo multiband peak limiter designed to fit a wide range of applications. Through the use of multiband techniques along with patented Aphex technologies, the limiting action is practically inaudible, so greater limiting depth is possible, resulting in higher loudness while maintaining audio quality. At virtually any limiting depth, the Dominator II is free of most artifacts normally associated with limiters. As a peak overshoot protection limiter, the Dominator II is undetectable in-line while it absolutely prevents peak levels from exceeding a user settable output level. In addition, the desired limiting effects of greater audio density and increased punch are readily available with the Dominator II.

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.

The Model 722 has Pre and De-emphasis circuitry included for broadcast use


  • Protection of amplifiers and speakers from overload
  • Preventing sudden peak overload of a mixer or recorder
  • Ensuring clean recording by stopping clipping of peaks and overshoots
  • Maximizes bit usage for less distortion
  • Satellite Uplink — Modulation control on high frequency audio, gives reduced distortion, better signal-to- noise
  • Broadcasting — AM and FM modulation control for increased loudness
  • Location film shoots — anti-clip for dialog and sound effects recording
  • Post Production — Soundtrack peak control; managing difficult dialog; controlling transient sound effects
  • Analog Mastering — peak control for high allowable average cutting levels; less limiter degradation to the program
  • STL & Phone Line Driver — maximize signal-to-noise without overload distortion


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Frequency Respons 10Hz – 38 kHz(± 0.5dB)
Dynamic Range 120 dB
Hum and Noise(unweighted 22Hz-22kHz) -93 dBu
Crosstalk(10 Hz – 22kHz) -79 dB
THD(10 Hz – 22kHz at max. output) .0003%
IMD(10 Hz – 22kHz at max. output) .0007%
IF LEVEL SET TO +4 dBu IF LEVEL SET TO -10dBv (-7.8dBu)
Connector XLR-3F and 1/4″ TRS Phone Jacks same
Type Transformerless, active balanced same
Balanced 40k ohms same
Unbalanced 20k ohms same
Maximum Level +27 dBu +12.5 dBV (+14.8 dBu)
CMRR >40 dB same
Connector XLR-3M and 1/4″ TRS Phone Jacks
Type Active balanced(may be used unbalanced)
Balanced 112 ohms
Unbalanced 56 ohms
Maximum Level +27dBu Unloaded; +25 into 600 ohms
Other Specifications
Power requirements 90-250 VAC 50-60 Hz 12W
Dimensions 19″W x 1.75″H x 8.25″ D 1 Rack U(482.6mm x 44.5mm x 209.6mm)
Net Weight 6 lbs(2.73 kg)
Shipping Weight 9 lbs(4.1 kg)

All specifications are subject to change without notice.

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Owner's Manual

720 Owner's Manual (7MB Zip File)

Other Documents

722 Quick Start Guide

720/722 Block Diagram
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