Aphex Dominator II 720 User Manual

Dominator
™
II
Precision MultiBand
Peak Limiter
Models 720, 722
The Dominator II from Aphex Systems is a stereo multiband peak limiter designed to fit
a wide range of applications. Through the use of multiband techniques along with new
proprietary circuits, the audibility of limiting action has been greatly reduced, especially
when compared to conventional limiters. This means that greater limiting depth is
possible, resulting in higher loudness with maintained audio quality. At virtually any
limiting depth, the Dominator II is free of “hole punching”, “dullness”, and most other
effects 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.
FEATURES
• Peak Ceiling Trimmable in 0.2dB Steps Over a 34dB Range
• 3 Bands of Limiting with Switchable Crossover Frequencies
• Patented Automatic Limit Threshold (ALT) Circuitry
• Freedom from Pumping
• Freedom from Spectral Gain Intermodulation
• Adjustable Density (Relative Crest Height)
• Calibrated Detented Potentiometers
• 104dB Dynamic Range
• LF and HF EQ Provides Shaping Equalization Below Peak Ceiling
• Relay Bypass, Remote Controllable
• Servo-Balanced Transformerless Inputs and Outputs
Model 720

Aphex Dominator II 720 Specifications

General

Type	Multiband Peak Limiter
Channels	2
Frequency Bands	3
Input Connectors	XLR, 1/4" TRS
Output Connectors	XLR, 1/4" TRS
Input Impedance	20 kΩ balanced
THD+Noise	< 0.01%
Power Supply	100-240V AC, 50/60 Hz
Dimensions	19" W x 1.75" H
Weight	6 lbs

Summary

Product Features

Why the Dominator II is Special

The Secret Ingredient: ALT

Model 722 Broadcast Dominator

Applications

Technical Specifications

Nominal Operating Level

Details input/output levels and switch settings for different operating modes.

Input Stage Specifications

Specifies connector types, impedance, and levels for the input stage.

Output Stage Specifications

Specifies connector types, impedance, and levels for the output stage.

Audio Performance Specifications

Details frequency response, dynamic range, hum/noise, crosstalk, THD, and IMD.

Control and Metering Parameters

Lists input gain, process on/off, EQ, crossovers, release time, density, and peak ceiling settings.

Emphasized Limiting Features

Mentions LED indicators for emphasized limiting functions specific to Model 722.

Model 722 Specific Controls

Lists DE-EMP, PRE-EMP, and TIME CONSTANT settings for the Model 722.

Other Operational Specifications

Details power input, requirements, fuse, weight, dimensions, and EIA mounting.