Power Draw and Thermal Dissipation

Testing parameters:

• Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz.
• Typical line impedance used.
• Measurements made with 120VAC mains. Data based on all channels driven.
• Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5.
• Line current figures for 100VAC units (not shown) are 1.2 times the line current figures of 120VAC units.
• Power draw (”watts in”) of 100VAC units is the same as power draw of 120VAC units.

Program	Load	Rated Power	Line Current 120 VAC	Line Current 230 VAC	Watts			Thermal Dissipation
					watts in	watts out	dissipated	BTU/hr	kcal/hr
At Idle: Sleep Mode					40	0	40	137	34
1/8th Power Pink Noise: Typical of program material just at clip.	8 ohms/CH, 16 ohms Bridge	1000x2 2000	6.6	3.3	546	256	290	988	249
	4 ohms/CH, 8 ohms Bridge	1000x2 2000	7.0	3.5	563	255	307	1049	264
	2 ohms/CH, 4 ohms Bridge	1000x2 2000	7.2	3.6	602	251	351	1198	302
	70/100V/CH, 140/200V Bridge	1000x2 2000*	6.7	3.4	639	257	382	1304	329
1/3th Power Pink Noise: Typical of program material with severe clipping.	8 ohms/CH, 16 ohms Bridge	1000x2 2000	11.3	5.6	980	676	304	1036	261
	4 ohms/CH, 8 ohms Bridge	1000x2 2000	12.3	6.2	1064	672	392	1338	337
	2 ohms/CH, 4 ohms Bridge	1000x2 2000	13.7	6.9	1190	705	485	1655	417
	70/100V/CH, 140/200V Bridge	1000x2 2000	11.6	5.8	990	674	316	1080	272

 

Front Panel Controls and Indicators

A. Fault Indicator: Red LED, one per channel, flashes when the amplifier output channel has stopped operating. Usually this means that the amplifier must be serviced.

B. Thermal Indicator: Red LED, one per channel, illuminates when the channel has shut down, or is very near shutting down, due to thermal stress or overload.

C. Ready Indicator: Green LED, one per channel, illuminates when the channel is initialized and ready to produce output. Indicator is off when the channel is set to standby mode via the System Architect or IQ Control Software packages.

D. Input Signal Indicator: Green LED, one per channel, illuminates when the channel’s input signal is above –40 dBu.

E. Output Signal Indicator, -20 dB: Green LED, one per channel, illuminates when the channel’s output signal is within 20 dB of clipping.

F. Output Signal Indicator, -10 dB: Green LED, one per channel, illuminates when the channel’s output signal is within 10 dB of clipping.

G. Clip Indicator: Red LED, one per channel, illuminates when the channel’s output signal reaches the onset of audible clipping. The Clip Indicator also will illuminate during Thermal Level Control (TLC) limiting or when the input compressor/limiter is protecting the amplifier from input overload.

H. Cooling Vents: Front-to-rear forced airflow.

I. Power Indicator: Blue LED indicates AC power has been applied and is within the safe operating range of the power supply. The LED will flash when the AC line voltage is approximately 15% above or 25% below the nominal rated value.

J. Data Indicator: Feature not implemented.

K. Bridge Mode Indicator: Yellow LED illuminates when the rear panel Mode Switch is set to the “Bridge” Position.

L. Power Switch: Push-on / push-off switch.

Back Panel Controls and Connectors

M. Power Cord Connector: Standard 15 amp IEC inlet. A circuit breaker located near the IEC power inlet protects the amplifier from excessive AC current draw.

N. Reset Switch: Resets the circuit breaker that protects the power supply.

O. Ventilation Grille: Air flow is front to back. Do not block the ventilation grilles.

P. Input Panel: Input module includes two balanced 3-pin removable barrier connectors for Channel 1 and Channel 2 input. Also includes two 4-pin removable barrier connectors for Channel 1 and Channel 2 Voltage Monitors, and one 4-pin removable barrier connector for remote trigger to Standby Mode. Behind the input panel are the Input Sensitivity Switches (not shown). One 3-position switch per channel selects various sensitivity settings.

Q. Mode Switch: This two-position switch is used to select the amplifier’s mode of operation: Dual or Bridge Mono. Dual mode is used for 2-8 ohm loads. Bridge mode is used for 4-16 ohm loads.

R. Channel Level Controls: One 21-position detented rotary attenuator per channel, ranging from –100 dB to 0 dB gain.

S. High-Pass Filter: One 3-position switch per channel selects between OFF (FLAT), 35 Hz and 70 Hz 3-rd order filters.

T. Output Connectors: One four-pole touch-proof terminal strip. Accepts up to 10 AWG terminal forks.

Outupt Cover (not shown): This covers the output connectors, protecting users from the connectors’ potentially high voltage. This cover is required for Class 2 wiring installations.

Physical Characteristics

Chassis: The amplifier is designed for stand-alone or rack-mounted operation. The chassis is black aluminum with a powder-coat finish. The unit occupies two EIA 19-inch-wide units.

Weight: 27.0 lbs (12.3 kg).

Shipping Weight: 32.0 lbs (14.5 kg).

Required AC Mains (+15%, -25%): Single phase, 120VAC, 60 Hz, 20 Amp Service; 220-240 VAC, 50/60 Hz, 10 Amp model available.

Power Draw at Idle (120 VAC mains): 35 watts in Standby Mode.

Operating Temperature: 10°C to 50°C (50°F to 122°F), Maximum Output Power de-rated above 30°C (86°F).)

Humidity: 70% or less, non-condensing.

Cooling: Front-to-back airflow.

Dimensions (W x H x D): 19” x 3.5 “ x 14.25” (48.3 cm x 8.9 cm x 36.2 cm).