Hollywood Sound RHV1200D

Price & Contact: $539.95; 909-673-9871, www.hollywooddigitalusa.com
All measurements @ 14 volts unless otherwise specified
Frequency Response (4-ohm IHF Load, 100 Hz Ref. crossover @ highest setting): +0.2 dB, -3 dB @ 282 Hz
L/R channel error, max deviation 20 Hz to 20 kHz: N/A
Signal-to-Noise Ratio (Below Rated Output, “A” weighted): -92.5 dB
Distortion at Rated Output @ 60 Hz: 2.3% @ 750 watts
Output Power (resistive) (4 ohms @ 60 Hz to 1% THD+N): 283 watts @ 14 volts; 237 watts @ 12.8 volts; 153 watts @ 10.5 volts
Output Power (resistive) (2 ohms @ 60 Hz to 1% THD+N): 472 watts @ 14 volts; 384 watts @ 12.8 volts; 250 watts @ 10.5 volts
Output Power (resistive) (1 ohm @ 60Hz to 1% THD+N): 631 watts @ 14 volts; 513 watts @ 12.8 volts; 370 watts @ 10.5 volts
Output Power (reactive) (4-ohm IHF Load @ 60 Hz to 1% THD+N): 292 watts
Output Power (reactive) (2-ohm IHF Load @ 60 Hz to 1% THD+N): 530 watts
Crosstalk @rated output, 20 Hz to 20 kHz: N/A
Damping Factor, 2 ohms @ 100 Hz: 32
Voltage for Rated Output: 218mV to 5.2 volts
Idle Current Draw: 1 amp
Current Draw @ 1/3 Maximum Power: 21 amps @ 210 watts
Efficiency @ 1/3 Maximum Power : 71%
Power-Up Noise: 44.6 dB SPL
Power-Down Noise: 30.7 dB SPL

		Hollywood Sound RHV1200D www.hollywooddigitalusa.com
		Hollywood Sound hits hard with this impressive class D, single-channel offering.		Hollywood Sound RHV1200D Specs Price & Contact: $539.95; 909-673-9871, www.hollywooddigitalusa.com All measurements @ 14 volts unless otherwise specified Frequency Response (4-ohm IHF Load, 100 Hz Ref. crossover @ highest setting): +0.2 dB, -3 dB @ 282 Hz L/R channel error, max deviation 20 Hz to 20 kHz: N/A Signal-to-Noise Ratio (Below Rated Output, “A” weighted): -92.5 dB Distortion at Rated Output @ 60 Hz: 2.3% @ 750 watts Output Power (resistive) (4 ohms @ 60 Hz to 1% THD+N): 283 watts @ 14 volts; 237 watts @ 12.8 volts; 153 watts @ 10.5 volts Output Power (resistive) (2 ohms @ 60 Hz to 1% THD+N): 472 watts @ 14 volts; 384 watts @ 12.8 volts; 250 watts @ 10.5 volts Output Power (resistive) (1 ohm @ 60Hz to 1% THD+N): 631 watts @ 14 volts; 513 watts @ 12.8 volts; 370 watts @ 10.5 volts Output Power (reactive) (4-ohm IHF Load @ 60 Hz to 1% THD+N): 292 watts Output Power (reactive) (2-ohm IHF Load @ 60 Hz to 1% THD+N): 530 watts Crosstalk @rated output, 20 Hz to 20 kHz: N/A Damping Factor, 2 ohms @ 100 Hz: 32 Voltage for Rated Output: 218mV to 5.2 volts Idle Current Draw: 1 amp Current Draw @ 1/3 Maximum Power: 21 amps @ 210 watts Efficiency @ 1/3 Maximum Power : 71% Power-Up Noise: 44.6 dB SPL Power-Down Noise: 30.7 dB SPL
		by Brian Smith

		The High Voltage series RHV 1200D is a single-channel, class D amp with power ratings of 200 watts into 4 ohms, 400 watts into 2 ohms, and 750 watts into 1 ohm. Features include a variable subsonic filter, variable low pass crossover, bass boost with variable center frequency, and a wired remote control. Performance The RHV1200D managed to beat all of its power ratings except the 1-ohm rating of 750 watts. During our test run, we saw a maximum of about 631 watts into 1 ohm. This difference only equates to about three quarters of a dB, so it’s not worth losing any sleep over. The 1200D also seemed right at home driving our reactive loads, producing a healthy 530 watts @ 1% THD+N into 2 ohms. Unlike many of the class D amps that we’ve seen, THD+N remains below 1 percent between 1 watt and amplifier clipping when driving any rated load. The amp’s noise floor is sufficiently low, measuring 92.5 dB below rated output. However, if you’re into SQ competition, turn on/off noises are a bit high at 44.6 dB SPL and 30.7 dB SPL, respectively. Bear in mind, that the turn on/off specs in this range are completely irrelevant if you do anything other than SQ competition. Efficiency is the hallmark of a class D design, and the 1200D delivers with 71% at 1/3 max power. That’s pretty impressive considering that the test is performed at 1 ohm and is intended to produce a worst-case scenario spec. From an overall performance standpoint, the 1200D appears to have everything necessary for some heavy-duty woofer punishment. Connections & Adjustments Power and speaker connections are located at one end of the amp and consist of captive-style terminal blocks. Power and ground connections accept up to 4-gauge wire, and speaker connections accept up to about 10-gauge. The remote’s phone-style receptacle and RCA inputs/outputs are located on the opposite end panel with all of the amp’s controls, which include input sensitivity, crossover cutoff frequency (4th order, 35 Hz–300 Hz), subsonic filter (4th order, 10 Hz–35 Hz), bass boost (0 to +20 dB), and bass boost center frequency (40 Hz–550 Hz). (Hollywood reports that its “Bass QX” technology allows you to find the frequency that best suits your car’s natural response curve in order to maximize bass response.) The wired remote, which includes power on and diagnostic LED, is in series with the amp’s input sensitivity, creating a remote subwoofer control. Installation This amp has a rather unusual heat sink design, which Hollywood calls its “Chameleon” design. Basically, it consists of two more-or-less typical heat sinks, which are arranged in a clamshell configuration with the amp’s circuitry inside. The result is a wrap-around heat sink that gives you a couple of options when it comes time to install the amp. There’s a big logo on what would normally be considered the bottom of the amp, and there are screws in the “top” that allow you to mount the feet. However, if you flip the amp over, the internals radiate heat up into the heat sink, which radiates the heat up into the surrounding air with the fan giving everything a push from behind. (Hollywood states that their cooling fan operates constantly which helps to ensure constant operation, even under stressful loads.)