T 973manual C.qxd 8/21/2006 11:39 AM Page 4
NAD T 973 Seven Channel Power Amplifier
ABOUT THE T 973
Designed specifically for home theater and custom installation set- ups, the NAD T 973 Power Amplifier delivers uncompromising performance. It combines supreme reliability, flexibility, and performance with outstanding value. Flexibility has always been an important part of NAD components. Such flexibility is particularly important in home theater and other
The T 973 incorporates NAD’s unique
The 12V trigger connection on the back panel allows the amplifier to be switched from On to
GB | allows the amplifier to be installed in places not in easy reach. |
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THE DESIGN
The NAD T 973 houses seven individual amplifiers, each on separate circuit board. Each amplifier channel acts as a “mono block” within the chassis. Each input connector, and set of loudspeaker output terminals, is directly connected to that channel’s circuit board. This design eliminates extra wiring and keeps signal paths short. Furthermore, this modular design increases reliability and thermal efficiency. The input circuit uses a totally new dual differential input topology that operates in true
Ruggedness and reliability are critical in
POWERDRIVE
To meet the diverse requirements of high current drive and high dynamic power, our patented PowerDrive amplifier circuit will build further on our reputation for amazingly effective power. By adding a second
INSTALLATION PRECAUTIONS
WARNING - To reduce the risk of fire or electrical shock, do not expose the amplifier to rain or moisture.
CAUTION - For units
Turn off all the components in the system whenever connecting or disconnecting any audio signal wiring. Once all signal connections have been completed, turn down all the system’s main volume control before turning the system components on. Then increase the volume control setting carefully to avoid damage to the system components.
NOTES ON INSTALLATION LOCATION
Read and follow all the safety instructions on the first page of this manual. To prevent a fire or shock hazard, do not place the amplifier where it will be exposed to any water or moisture. If liquid accidentally gets into the amplifier, immediately unplug the AC power cord. Do not operate the amplifier again until it has been examined by a service technician.
The amplifier generates a moderate amount of heat, requiring ventilation. Do not obstruct the air outlet grilles on the top or bottom covers. There should be at least 3 inches (7.5 cm) of clearance above the amplifier and 1 inch (2.5 cm) to the sides. Do not place the amplifier in an enclosed area, such as in a bookcase or in a cabinet, unless it is very well ventilated. Be sure there is adequate room behind the amplifier for signal input and speaker output connections. If you want to locate the amplifier on a carpeted floor, place a board under it in order to prevent it from sinking into the carpet, blocking the air inlets on the bottom. Do not place the amplifier where it will be exposed to direct sun light for prolonged periods of time.
This unit may be installed on any sturdy, level surface.
NOTE: The amplifier’s weight must always rest on its bottom feet. Never put the amp down on its rear panel, with its front panel facing up. Doing so risks damage to the input/output connectors.
The power transformer in the T 973 generates a magnetic hum field of moderate strength. Turntables (especially those with a
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