Higher Loudness Than Conventional Limiters While Maintaining Audio Quality
The Aphex Model 720 / 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 such that 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.
The Model 722 has Pre and De-emphasis circuitry included for broadcast use, while the Model 720 Does not.
Aphex 720 Dominator II's specifications
AUDIO
Frequency Response ±0.5 dB 10Hz to 50 kHz same
Nominal Gain 0dB +14dB / -21dB 0dB +8dB / -21dB
Signal/Noise (Ref +4dBm) -84dB -94dB
THD (Ref 1kHz, no limiting) <0.006% (+12dBu in) <0.006% (+2dBu in)
SMPTE IMD <0.006% <0.006%
Max Input (MIL) +26dBu +16dBu
Max Output Level (MOL)* +24dBm Peak +14dBm Peak
*(MOL is limited by the peak ceiling setting. The output stage is capable of +25dBu into 600 ohms)
Crosstalk -60dB up to 10kHz same
Dynamic Range 104 dB same
INPUT and OUTPUTS
Input Circuits Servo Balanced Transformerless
Output Circuits Servo Balanced Transformerless
Input Connectors 3-pin XLR Female
Output Connectors 3-pin XLR Male
Input Impedance 19.5k ohms unterminated; 600 ohms by rear panel switch
(terminator lifts in bypass mode)
Output Impedance 65 Ohms
Input CMRR Better than 50dB 20Hz to 20kHz
Input RF Rejection Better than 40dB at 800kHz; better than 60dB above 2 MHz
CONTROLS and ADJUSTMENTS
Input Gain +14dB / -21dB +8dB / -21dB
LF EQ ±5dB
LF Crossover 100Hz / 210Hz
HF EQ ±5dB
HF Crossover 1.7kHz / 3.4kHz
Release Time 150msec to 7 seconds
Density -5 to +5 RCH
Output Ceiling -9 to +24dB (peak) (=peak value of sinewave)
OTHER SPECIFICATIONS
Power Requirements 120 VAC 50-60 Hz 30 Watts (100, 220, 240 options)
Power Fuse 100/120 VAC = .375A SloBlo; 220/240 VAC = .25A SloBlo
Dimensions 19"W x 1.75"H x 9.5" D (482.6mm x 44.5mm x 241.2mm)
Net Weight 9 lbs (4.08 kg)
APPLICATIONS
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
Studio Economik New 500 series preamp from Geoffrey Daking featuring vintage Trident A Range tone, Jensen input transformer and Class A circuitry. The variable high pass filter is indispensable for tracking sessions!
