User manual NAD S170

[. . . ] S170 AV Surround Sound Pre-amplifier GB Owner's Manual SAFETY INFORMATION EXPLANATION OF GRAPHICAL SYMBOLS The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. PRECAUTIONS Read the Operating Instructions carefully and completely before operating the unit. All warnings and cautions in the Operating Instructions and on the unit should be strictly followed, as well as the safety suggestions below. [. . . ] In most systems using a subwoofer, setting front speakers to "Small" is usually the best option. LEVEL SETUP Setting the relative balance of your system's loudspeakers is perhaps the most important single function of setting up your S170. First, this process ensures that surround-sound recordings, whether music or film soundtracks, will play back with the balance of effects, music, and dialog that the artists intended. Second, if your system incorporates a subwoofer, it establishes a correct relationship between the volume of the subwoofer and the other speakers, and thus of low-frequencies (bass) to other sonic elements. USING AN SPL METER It is perfectly possible to perform the S170 Level setup routines "by ear, " and an experienced ear will usually produce acceptably accurate results. However, the timbral differences among front, center, and surround speakers can make accurate level-matching difficult. Therefore, we strongly recommend the use of an inexpensive sound-pressure level (SPL) meter, such as Radio Shack part number 33-2050, for this task. Ownership of such a meter may prove a very useful audio tool, or your NAD audio specialist may be able to help you with temporary use of a meter. Calibrating your system with an SPL meter also permits you to set its overall level so that, when the S170's Master Volume control is set to -0 ("reference level"), the playback in your home theater matches the loudness of the same film projected in a well-set-up commercial cinema. (Of course, you can still set the Master Volume wherever you like from day to day. ) The SPL meter should be placed at the primary listening position, at approximately the height of the seated listener's head. A tripod is very useful, but with a little duct-tape almost anything--a pole lamp, musicstand, or ladder-backed chair, for example--can do as well. Just be sure that no large acoustically reflective surfaces obstruct or are near the microphone element. Orient the meter with its microphone (usually at one end) pointing straight up toward the ceiling (not forward toward the speakers) and make sure that its "C" weighting scale is selected. To calibrate your system to play at the same objective loudness as a highquality commercial cinema, set the meter to display 75 dB SPL. (On Radio Shack meters this necessitates either setting the meter to its 80 dB range and taking your readings at the -5 point, or selecting the 70 dB range and reading at the +5 point. This 75 dB SPL point is the "official" cinema (and THX) reference level. However, we note that no law requires you to use this level, and in fact this reference seems too loud for some users for home cinema playback. Many people find instead that calibrating to 70 dB SPL is just about right. GB 17 CONFIGURING THE S170 CONFIGURING LEVELS From the OSD Main menu, select the <Level setup> item using the remote's [Cursor up/down], and [Enter] keys. Activate the test-noise signal with the remote's [Test] key (third from the bottom); you will here a "surf" noise that cycles through your speakers, beginning with the left-front. (If you do not hear the testnoise, check your Audio Connections (above), and your <Speaker setup> OSD menu settings, (above. ) On the left-most column of the OSD you'll see an > pointing toward <Left> (if the > points to another other line, use the remote's [Cursor up/down] keys to move it to <Left>). Now use the remote's [Cursor <>] keys to adjust the level of the noise output from the Left (left-front) speaker; the test-noise will automatically move there and the "level offset" reading on the right will change by 0. 5 dB increments. If you are using an SPL meter, adjust the Left output to produce a reading of 75 dB SPL C-weighted (or whatever other reference level you have chosen to adopt). [. . . ] (Some serial devices are unable to communicate at 12000 bps; a bit-rate converter to convert S170 communications to 9600 bps is available as a separate accessory; contact your installing NAD audio specialist. A Windows 95/98/ME-compatible application for serial control of the S170 from a PC, as well as complete details of the S170's serial-communications protocols, are available for download from the NAD website: HTTP://WWW. NADELECTRONICS. COM See your NAD installing specialist for more information. 28 SPECIFICATIONS CONDITION NO SOUND FROM ALL CHANNELS · · · · · · · · · · POSSIBLE CAUSE(S) AC power unplugged power not switched on outlet is un-powered Tape Monitor is engaged Faulty/missing cables <Speaker setup> channel(s) set to "No" power-amp or speaker-connections faulty No surround listening mode is engaged surround-channels set to "No" on <Speaker setup> menu surround-channels level set too low on <Levels setup> menu Subwoofer is off, unpowered, or improperly connected subwoofer set to "No" on <Speaker setup> menu sub level set too low on <Levels setup> menu Source is a 2/0 (etc. ) Dolby Digital or DTS recording without center channel center set to "No" on <Speaker setup> menu center level set too low on <Levels setup> menu Source's digital output is not connected to an S170 digital input Batteries are flat or incorrectly inserted IR transmitter window on remote, or IR receiver window on S170 is obstructed S170 front panel is in very bright sunlight or ambient light Microprocessor error · · POSSIBLE SOLUTIONS(S) Check AC cable, connection, and outlet disengage Tape Monitor NO SOUND FROM SOME CHANNELS · · · · · Check cables check <Speaker setup> menu check power amp, cabling, and speakers Select appropriate listening mode correct <Speakers setup> or <Levels setup> settings NO SOUND FROM SURROUND CHANNELS NO SOUND FROM SUBWOOFER · · · · · Power-up subwoofer, check sub's AC outlet, or check connections correct <Speakers setup> or <Levels setup> settings NO SOUND FROM CENTER CHANNEL · · · · · Play a known 5. 1-channel recording or select Dolby Pro Logic or Mono mode correct <Speakers setup> or <Levels setup> settings Check connections NO DOLBY DIGITAL/DTS S170 DOES NOT RESPOND TO S70 REMOTE · · · · · · · · Check batteries check IR windows and ensure clear line-of-sight from remote to S170 reduce sunlight/room lighting S170 DOES NOT RESPOND TO FRONT-PANEL COMMANDS · · Power-down the S170 via the front-panel Power key and unplug it from the AC outlet; wait five minutes, re-connect and power up GB 29 SPECIFICATIONS Decoding formats Sampling rates Modes STEREO (ANALOG BYPASS) Analog input impedance Analog frequency response Maximum input level Signal/noise ratio Dynamic range Analog channel separation Crosstalk Maximum output level OUTPUT IMPEDANCE Main pre-out Tape out Multi room output TONE CONTROL Bass Treble DIGITAL INPUT PERFORMANCE THD+N (Bandwidth 10Hz - 20kHz) Digital input impedance VIDEO Input and output impedance PHYSICAL SPECIFICATIONS Size (W x H x D) Net weight Shipping weight 17 3/4 x 3 7/8 x 11 1/4" 450 x 97 x 285 mm 11 lbs (4. 99kg) 13 lbs (5. 89kg) 75 (@20Hz) +/- 12dB (@20kHz) +/- 12dB) 56 470 470 Dolby Digital, Dolby Pro Logic, DTS, THX Surround EX 32kHz, 44. 1kHz, 48kHz, 96kHz EARS 16k / 100pF 20Hz - 20kHz +/- 0. 2dB 3V rms THD+N 0. 005% >90dB 95dB >95dB >90dB 6V rms 0. 005% 75 GB 30 S170 Owner's Manual Addendum New HTR 2 Learning Remote Control Since the S170 was first introduced, we have been asked by many of our customers for a remote control that will operate their entire audio-video system. We have recently developed a product to answer this demand, the HTR-2. So, in addition to the S70 unit remote described in the Owners Manual, there is also an HTR-2 and an HTR-2 Owner's Manual included with this S170. [. . . ]