NAD Debuts New A/V Tuner Preamplifier and 7-Channel Amplifier Combination 
Home Theater News Preamplifier News
Written by AVRev.com   
Tuesday, 23 September 2003

NAD, has just introduced the T 973 Seven Channel Amplifier and T 163 A/V Tuner Preamplifier combination.

The new T 973 Seven Channel Amplifier benefits from NAD's proprietary PowerDrive™ topology, delivering performance independent of the loudspeakers.

The T 163 offers an array of surround formats including Dolby Digital EX, DTS ES Discrete and Matrix, DTS NEO:6 decoding along with 7.1 Matrix, Dolby ProLogic II and the proprietary NAD EARS circuitry for creating surround sound from most format inputs, 7.1, 6.1, 5.1 and 2.0 stereo, digital or analog.

The PowerDrive circuitry employed in the T 973 automatically senses a loudspeaker’s impedance characteristics and adjusts its power supply settings to best cope with that specific load. According to NAD, this ensures dynamic and distortion-free performance, even from demanding 4-ohm designs.

The T973 employs monoblock construction to deliver 140 watts per channel of continuous power with all seven (7) channels driven simultaneously at rated distortion into 4 or 8 ohms on 220 watts into 2 ohms.

Each element of the individual channel circuitry, other then the power supply is fully independent, reducing inter-channel influences. Active ground isolation further reduces the possibility of inter-channel interference. The power supply was designed using NAD’s exclusive “Holmgren” transformer with a core and materials to enhance efficiency, making the transformer less sensitive to DC offsets on the AC's main voltage.

Each section features a FET Class A input and driver stage circuits employing high speed, high current discrete output devices to promulgate dynamic quality.

Individual gain adjustment for each channel promotes easy system configuration as does the T973’s integral 12V trigger turn-on response. The T 973 utilizes a combination of fuse and electronic non-intrusive protection. Each channel is protected against excess temperature, DC fault, and loudspeaker short-circuits.

The T163 A/V Tuner Preamplifier combines control, flexibility and decoding functionality. It offers the latest 7.1, 6.1 and 5.1 digital surround formats with conversion of the decoded digital bitstream using 24-bit /192 kHz DACs on all channels. Also included is HDCD decoding and a "Stereo Enhanced" mode, bypassing all processing.

The T 163 includes an FM/AM tuner that offers sonic performance and signal pulling capability thanks to its MOS/FET front end, PLL tuning, and accurate IF stage. In addition there is an easy to program 30 station-preset memory and RDS display.

The T 163 provides a suite of inputs and outputs to accommodate virtually all the latest digital audio and video products including three HD-Compatible Component Video inputs, six Digital Inputs (4 Coaxial, 2 TOS Link), two Digital Outputs (1 Coaxial, 1 TOS Link), two Subwoofer outputs, a 7.1 analog input, three 12-volt triggers and an RS-232 communication port. The RS-232 port allows for future software upgradability and the integration in advanced after market control systems, like Crestron and Aegis.

With a Zone 2 audio and video output, the T163 is really two components in one, allowing fully independent programs to be played in two different rooms simultaneously. The ZR 2 remote handset is supplied to control all Zone 2 functions from the local or remote location.

Direct access to channel volumes on the HTR -2 remote control, allows the consumer make fine level adjustments to the subwoofer, center channel, and surround channels without stopping the movie or music to enter the speaker set-up menu. Five AV Presets allow you to store up to five unique speaker configurations for instant recall. Input section, speaker selection and size, crossover frequency, level, distance, bass management and surround mode can all be adjusted to suit and saved to the non-volatile AV Preset memory.

The T 163 is set to retail for $1499 with the T 973 selling for $1999 MSRP. Both will be available in October 2003.







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