Nad T 175 Brochure
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performance and flexibility in favour of convenience and price. This is especially true for the power amplifier section of the receiver. The large power supply and output stage heat sinks of the power amp must be compromised to fit in the single chassis format of the receiver. These high power parts can also cause interference with the low-voltage sensitive circuits used in preamplifier, tuner and decoder sections of the receiver. The T175 combines all the control and decoding functions in one compact chassis, giving up nothing to the convenience of the receiver, yet by separating the power amp stages gives a big jump in performance and flexibility. The 5 channel NAD T955 and the 7 channel T975 power amplifiers are perfect accompaniments to the T175. Performance Todays advanced Surround Sound processors require quality in the digital decoding stages, the video processing section and in the analogue preamp stages for the best overall performance. The T175 is an excellent example of the NAD Design Teams expertise in all three areas. Not only that, but we have made many ergonomic refinements to simplify operation and make it more enjoyable to get all the performance this magnificent processor is capable of delivering. Using the latest 32 bit Dual Core Floating Point DSP technology, NAD was able to include the popular surround formats from Dolby and DTS, as well as including NADs own highly regarded music surround mode; EARS. Unlike, the typical artificially enhanced DSP modes like Club, Stadium, and Church, EARS uses DSP technology to extract the natural ambience of the recording. This is redirected to the surround channels to create natural surround sound from any 2 channel source. This induces a warm natural reverberant effect without the artificial BOING of digital reverb. The surround mode of the source material is automatically detected via the digital inputs of the T175, and the highest or most advanced form of decoding, based on your setup, is switched in. Conversion of the encoded digital bitstream is performed with high resolution and extremely linear Burr-Brown 24 bit/ 192kHz D/A Converters carefully selected for their performance capabilities. The T175 uses five two-channel DACs rather than the usual single 8 channel DAC favoured by many of todays surround sound processors. We have found that the sonic performance of the two-channel DACs used in a dual differential mode, is well worth the extra cost of this configuration. Credit for the sound of NADs components rests squarely with our unique design approach and our experienced and very talented design team. Most companies design their products to a technical specification and a price point. While this sounds logical enough, it does not address the way the product will actually be used by the eventual owner. You dont listen to specifications, you listen to music and sound. While NAD products exhibit excellent technical measurements, we have relied on our own ears and listening experience to determine the final design of our products. Because of our unique design approach, NADs sound is simply more real sounding, adding enjoyment and excitement to your favourite films and music recordings. Flexibility The T175 has all the flexibility required to serve as the command center for even the most sophisticated Home Theatre and multi- room systems. A full suite of video switching caters to all the popular video formats (HDMI, Component Video, S-Video, and Composite Video). Digital inputs (including a handy front panel input) and outputs are available in both coaxial and optical formats to make it easy to attach all your digital sources for playback and recording. Digital Inputs are converted to analogue for use in Zone 2, and you can choose to convert unused tape outputs for Zone 3 and Zone 4 use with independent source selection and volume control. With the T175, NAD has made it easy to add more speakers for listening to music in additional rooms or zones. Multi-room systems can be created using the Zone 2, 3 and 4 outputs to add additional amplifiers and speakers with the benefit of independent source selection and volume control. A separate second zone remote is included, and signals can be transmitted via remote IR sensors (not included) to the IR input sockets on the rear panel of the T175. There are also 12 volt triggers to automatically switch amplifiers on and off, and even an RS-232 data port for connection to highly advanced automated control systems. Thoughtful features like discrete On and Off codes, direct access to inputs and FM station presets facilitate the integration of the T175 into elaborate remote control systems. An analogue 7.1 input is also provided for attaching a DVD-Audio player or any other yet to be developed surround decoder, making sure the T175 does not become obsolete anytime soon. Luxurious Simplicity All the capability and flexibility in the world is quite useless if the receiver becomes too complicated to be operated by every member of the family. NAD has taken special measures to make operation of the T175 as logical and straightforward as possible. Initial system setup is best accomplished using your television monitor and the clear and simple On Screen Display (OSD), which can be configured to also give status updates as settings are changed in everyday use. Once the T175 is informed of your specific system set-up, all settings are stored in a non-volatile memory making this a one time task. The informative front panel display indicates complete information about the source being listened to or watched including selected surround mode and volume setting. The front panel display can be easily customized by renaming inputs and even determining what information you prefer to have displayed and when to display it. Automatic Audio Setup is available using the supplied calibrated microphone. Simply place the microphone in the listening position and select Audyssey Auto Calibration and the system automatically detects which speaker is connected, chooses the ideal crossover point to the subwoofer, checks speaker phasing, and adjusts the levels and delays. These adjustments are made to a level of accuracy that it would be difficult to duplicate by ear alone.
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Audyssey MultEQ XT is the latest in digital sophistication, allowing for improved frequency response in a large family sized sweet spot. Using the calibration microphone to hear your room, a series of test tones measure the speakers response and the rooms distorting echoes independently, and then calculates an ideal response that minimizes the effects of the rooms echoes. While this sounds simple, the digital technology that is required for this level of performance would have cost many thousands of dollars just a few short years ago. But the electronic technology is only half the story, since an advanced knowledge of acoustics is also required to get good results from such a system. Working closely with Audyssey, NADs acoustic engineers developed the final response curves that reflect our own performance values. The FM tuner includes 30 favorite station presets that can be custom named, or if the station supports the Radio Data System (RDS), it will automatically stream information about the station and music being played. We also include a Digital Broadcast Ready socket on the rear panel for adding outboard DAB or XM modules. All the control software is included, just plug in the module and start enjoying the clear sound and expansive content selection available with Digital Radio Broadcast. Five independent Audio Video Custom Presets can store unique listening modes, DSP options, tone, speakers and display settings for instant recall, making it easy to custom tailor your system for different types of program material. Encoded surround modes like Dolby Digital and DTS are automatically selected if the program is so encoded. The T175 also remembers your last used settings when switched in and out of Standby mode. The included HTRC 1 remote handset is itself an engineering tour-de-force. Able to control up to 8 different components, an illuminated LCD screen clearly shows what device is selected and what command is being sent. It has illuminated buttons for easy operation in low light environments, and the length of time the illumination is on can easily be adjusted. Remote commands for products not already included in the HTRC 1s memory can be easily taught to the HTRC 1. And the HTRC 1s Macro function allows up to 64 individual commands to be triggered by the pressing just two keys. With this feature, all of the commands required for watching a DVD, for example, are executed automatically by the HTRC 1s Macro function. There is also a USB port that allows the HTRC 1 to be connected to a PC, and using our freely downloadable program from the NAD website, you can program, customize, memorize and clone the HTRC 1. Summary The T175 offers remarkable performance and flexibility in a compact and simple to operate package. This multi-channel control center will bring your favourite music and movies to life in your home entertainment room with an absolute minimum of fuss and a maximum of pure enjoyment. T 175 A/V Tuner Preamplifier