User manual NAD T750

[. . . ] Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an 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 product. Do not place this unit on an unstable cart, stand or tripod, bracket or table. [. . . ] MEMORY The Memory button is used to store stations into the three Preset Memory Banks. When Memory is active, the Preset number flashes and the red `MEMORY' indicator is shown in the Display Panel. FM MUTE/MODE This button combines two functions; it switches the tuner from Stereo to Mono and disengages the muting circuitry at the same time. The muting circuit will mute the tuner in between radio stations when searching or tuning. Very weak radio station signals however may be suppressed by the muting circuit. If such a very weak station is in stereo it will have a high level of background hiss. Switching to Mono Mode and disengaging the muting circuit by depressing the FM MUTE/MODE button will allow the station to be heard and will cancel most or all of this background noise. Press the FM Mute/Mode switch again to return to Auto Stereo FM operation. Dolby Pro Logic and Dolby 3 Stereo both decode the surround sound signals encoded in movie sound tracks from video or TV. To decode correctly, the video or TV signal must be of a Dolby Surround or Dolby Stereo soundtrack and coming from a stereo VCR, TV or satellite/cable receiver. in the Dolby Pro Logic the rear Surround speakers are also activated. Use of a centre channel speaker is optional (set with the Centre button No. In the Dolby 3 Stereo mode, the rear Surround speakers are inoperative; the centre channel however is activated in this mode. Dolby 3 Stereo can be a good alternative to Pro Logic if it isn't practical or if space doesn't allow for the installation of Surround speakers. For more information refer also to the chapter "Setting up the Surround System" and appendix "A short guide to Surround Sound". In the HALL mode, a realistic level of ambience of surround sound is added to a normal stereo source such as a CD or FM radio. The selected mode is displayed in the main area of the Display Panel for 3 seconds and is continuously shown in Surround Mode area of the Display Panel. As an additional convenience feature, your T750 memorises which surround mode you have used with the given input selection. When you next select that input, your T750 will automatically choose the same Surround mode again. If you normally use Dolby Pro Logic mode on the Video 1 and Video 2 inputs, Dolby 3 Stereo mode on the Video 3 input, Hall mode on FM, and By-Pass (Stereo) on the others, pressing the Input Selector will automatically default to the right Surround mode without having to separately press the Surround Mode button. NOTES: An external source such as a decoder or DVD player with a decoder built-in (Dolby Digital, DTS* for instance) can be connected to the 5. Input is selected, no other surround modes are available, so "SURROUND MODE" extinguishes in the display panel. [. . . ] If you are using a mix of amplifiers or speakers from different manufacturers, or using amplifiers in `bridge' mode, then it is possible that the phase can be internally reversed in the some of the amplifiers or speakers, so you must check for correct phase by listening. to check phase by listening , set the T750 to Dolby Pro Logic and FM Mute/Mode OFF and select a FM radio station. A stable sound image should be heard as though it comes from a single point between the centre and left front speakers. If the signal sounds diffuse and not as though it is coming from a single point in space, reverse the connections to the centre loudspeaker. [. . . ]