Aphex Dominator II 720 Multiband Peak Limiter
Aphex Dominator II 720 Multiband Peak Limiter
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
Specifications:
-
NOMINAL OPERATING LEVEL (Peak Ceiling RANGE switch) 0dBu (for use with +4 or +8dBu)
- INPUT
- Connector: 3-Pin XLR female (pin 1 ground, pin 2 positive, pin 3 negative)
- Type: Transformerless, servo balanced with passive 4th order RF filter Chassis grounded per AES standards
- Impedance: 19.5 kW Unterminated; 600W with rear-panel terminator engaged (terminator lifts in bypass)
- Nominal Level: from 0dBu to +8dBu
- Maximum Level: +26dBu
- CMRR (typical): > 50dB 20Hz to 10kHz
- RF Rejection: > 28dB at 800 kHz; > 60dB above 2 mHz
- OUTPUT
- Connector: 3-Pin XLR male (pin 1 ground, pin 2 positive, pin 3 negative)
- Type: Transformerless, servo balanced, chassis grounded per AES standards
- Output Impedance: 65W
- Nominal Level: from 0dBu to +8dBu
- Maximum Level: +25dBu PK*
- AUDIO (Controls set for unity gain, no limiting and flat response except as otherwise noted)
- Frequency Response: +0.2dB 4.5Hz – 50kHz
- Dynamic Range: > 108dB
- Hum & Noise (unweighted, 22 Hz – 22 kHz): < -82dBu
- Crosstalk: < -60dB up to 10kHz
- THD (Ref.: 1kHz, no limiting): < 0.006% (+12dBu in)
- SMPTE IMD: < 0.006% (+12dBu in)
- 720/722 CONTROL & METERING PARAMETERS (on front panel unless otherwise noted)
- INPUT GAIN: +14/-21 dB typical
- PROCESS ON/OFF: ON: Active / OFF: Hardwire Bypass
- LF EQ Boost/Cut: ± 5 dB
- HF EQ Boost/Cut: ± 5 dB
- XOVER 1 Frequency: 100 Hz / 210 Hz
- XOVER 2 Frequency: 1.7 kHz / 3.4 kHz
- RELEASE Time: 150 mSec to 7 Sec
- RCH (Relative Crest Height) DENSITY: -5 to +5
- STEREO COUPLING: ON / OFF
- PEAK CEILING:
- +1 to +25dBu (PK)**
- Peak Ceiling is adjusted with the COARSE (2dB steps), FINE (0.2dB steps) and RANGE (0dB/-10dB) controls
- LIMITING Meter: 10 segment meter indicates up to 15dB of gain reduction in the channel with the greatest amount of limiting
- 600 OHM INPUT TERMINATION: Each channel is switchable on rear panel (lifts in bypass)
- REMOTE Control Jack: A four pin RJ11 telephone-style connector on the rear panel provides remote control capacity of the PROCESS ON/OFF bypass relays and dry “tally” contact for a remote status indicator
- 722 CONTROL PARAMETERS (722 only)
- EMPHASIZED LIMITING (switches are located on the rear panel with LED function indicators located on the front panel)
- DE-EMP (De-emphasis): ON / OFF
- PRE-EMP (Pre-emphasis): ON / OFF
- TIME CONSTANT (Microseconds): 75mS / 50mS
- INPUT
-
NOMINAL OPERATING LEVEL (Peak Ceiling RANGE switch) -10dBu
- INPUT
- Connector: 3-Pin XLR female (pin 1 ground, pin 2 positive, pin 3 negative)
- Type: Transformerless, servo balanced with passive 4th order RF filter Chassis grounded per AES standards
- Impedance: 19.5 kW Unterminated; 600W with rear-panel terminator engaged (terminator lifts in bypass)
- Nominal Level: from -10dBu to 0dBu
- Maximum Level: +16dBu (+14.8dBV)
- CMRR (typical): > 50dB 20Hz to 10kHz
- RF Rejection: > 28dB at 800 kHz; > 60dB above 2 mHz
- OUTPUT
- Connector: 3-Pin XLR male (pin 1 ground, pin 2 positive, pin 3 negative)
- Type: Transformerless, servo balanced, chassis grounded per AES standards
- Output Impedance: 65W
- Nominal Level: from -10dBu to 0dBu
- Maximum Level: +15dBu PK*
- AUDIO (Controls set for unity gain, no limiting and flat response except as otherwise noted)
- Frequency Response: +0.2dB 4.5Hz – 50kHz
- Dynamic Range: > 106dB
- Hum & Noise (unweighted, 22 Hz – 22 kHz): < -90dBu
- Crosstalk: < -60dB up to 10kHz
- THD (Ref.: 1kHz, no limiting): < 0.006% (+2dBu in)
- SMPTE IMD: < 0.006% (+2dBu in)
- 720/722 CONTROL & METERING PARAMETERS (on front panel unless otherwise noted)
- INPUT GAIN: +14/-21 dB typical
- PROCESS ON/OFF: ON: Active / OFF: Hardwire Bypass
- LF EQ Boost/Cut: ± 5 dB
- HF EQ Boost/Cut: ± 5 dB
- XOVER 1 Frequency: 100 Hz / 210 Hz
- XOVER 2 Frequency: 1.7 kHz / 3.4 kHz
- RELEASE Time: 150 mSec to 7 Sec
- RCH (Relative Crest Height) DENSITY: -5 to +5
- STEREO COUPLING: ON / OFF
- PEAK CEILING:
- -9 to +15dBu (PK)**
- Peak Ceiling is adjusted with the COARSE (2dB steps), FINE (0.2dB steps) and RANGE (0dB/-10dB) controls
- LIMITING Meter: 10 segment meter indicates up to 15dB of gain reduction in the channel with the greatest amount of limiting
- 600 OHM INPUT TERMINATION: Each channel is switchable on rear panel (lifts in bypass)
- REMOTE Control Jack: A four pin RJ11 telephone-style connector on the rear panel provides remote control capacity of the PROCESS ON/OFF bypass relays and dry “tally” contact for a remote status indicator
- 722 CONTROL PARAMETERS (722 only)
- EMPHASIZED LIMITING (switches are located on the rear panel with LED function indicators located on the front panel)
- DE-EMP (De-emphasis): ON / OFF
- PRE-EMP (Pre-emphasis): ON / OFF
- TIME CONSTANT (Microseconds): 75mS / 50mS
- INPUT
-
OTHER SPECIFICATIONS
- Power Input: IEC standard receptacle with voltage selector, fuse and filter
- Power Requirements: 100, 120, 220, or 240 VAC; 50 or 60 Hz
- Power Consumption: 30 watts maximum
- Power Fuse: Slow blowing type- 100/120 VAC: 0.375 A; 220/240 VAC: 0.25A
- Net Weight: 6 lbs. (2.72 kg)
- Shipping Weight: 9 lbs. (4.08 kg)
- Dimensions: 19” W x 1.75” H x 9.63” D (482.6 mm x 44.5 mm x 244.6 mm)
- EIA Mounting: Mounts in standard 19” rack, using 1 RU of vertical space and 8.8” (223mm) of depth behind front panel (not including power or I/O cables)
* Maximum Output Level is limited by the PEAK CEILING setting. The output stage is capable of +26dBu into 600W.
** dB (PK) = peak value of sine wave.
