The Aphex Model 722 Dominator II is a stereo MultiBand peak limiter designed to fit a wide range of applications, adding Pre- and De-emphasis for broadcast use. 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.

The Dominator II Model 722 has separately switchable pre and de-emphasis curves. When pre-emphasis is switched in, either 50 or 75 microseconds, the equalization curve is added after the input stage and before the limiters. When de-emphasis is switched in, the complementary de-emphasis curve is inserted after the final clipper and before the output stage. When both pre and de-emphasis are switched in, the frequency response of the output is flat. When the input is below threshold and as the input increases above threshold the output takes the shape of the de-emphasis curve. When both pre and de-emphasis are switched out, the Model 722 works exactly like the Model 720.

Features:
• Pre- and De-emphasis circuitry for broadcast
• Peak ceiling adjustable in .2 dB steps over a 34 dB range
• Switchable low-to-mid and mid-to-high crossover frequencies
• Remote control hardwire bypass
• Dynamic range of 104 dB and THD distortion of less than .005%
• Balanced XLR I/O
• 19"W x 1.75"H x 9.5" D; 9 lbs net wt

RANGE SETTING:		0dB	-10dB
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)
	SMPTE IMD
	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)