User manual NAIM NAC 122X

[. . . ] Controls on broadcasting in some territories allow very high levels of radio frequency radiation and both the choice and exact siting of equipment may be critical. Susceptibility to radio frequency interference is related to the wide internal bandwidth necessary for high sound quality. A radio frequency filter kit is available for some Naim equipment but sound quality will be progressively compromised as more elements of the kit are fitted. [. . . ] The NAC 122x has six DIN input sockets and two alternative pairs of RCA Phono sockets. The RCA Phono sockets are permanently connected to the CD and AUX 2 inputs in parallel with their DIN sockets. RCA Phono and DIN sockets for the same input should not be connected simultaneously. Once in program mode, the front panel mon button will illuminate if automatic switching is already enabled. If it is not enabled it can be switched on by pressing the front panel mon button twice. With auto switching enabled, pressing the front panel mon button will reveal the inputs selected for auto switching by their button indicators illuminating for a short time. Repeated operation of the mon button will sequentially select each combination of CD, Tuner, AV inputs, and auto switching disabled (CD, Tuner and AV button indicators off). When the desired inputs selected for auto switching are indicated, stop pressing the mon button. The remote handset mon key can also be used to set up automatic source switching. Automatic input switching only becomes operational on exiting from program mode by pressing and holding the handset prog key. note: In a few cases some further equipment configuration may be required for auto switching to operate correctly on the AV input. Please contact your retailer or local distributor for advice. 3. 2 s ubw o o f e r ou t p u t The NAC 122x provides an analogue subwoofer output via a pair of RCA Phono sockets. note: The subwoofer output is a duplicate of the main preamplifier output. 3. 3 a uto m a t i c I n p u t sw i t c h i n g The NAC 122x incorporates an optional automatic input switching feature which can select the appropriate input as soon as any handset function for a particular Naim source component is operated. For example, if the tuner input is selected on the NAC 122x and the CD play key is operated on the handset, the NAC 122x will automatically switch to the CD input. Automatic input switching can be programmed to operate independently on any combination of the CD, AV and Tuner input buttons. To enable automatic input switching, first switch the NAC 122x into program mode by pressing and holding the prog key of the remote handset (in preamplifier mode). Program mode is indicated by a flashing indicator on the volume control. [. . . ] A remote control output enables the NAC 122x to be used as an IR receiver and to generate a modulated RC5 signal. 3. 7 reco r d m o n i t o r The mon button operates the record monitor circuit enabling the recorded output of a suitably equipped recording device to be heard. 3. 8 reco r d m u t e In order to minimise power consumption and improve sound quality the NAC 122x record output circuits may be switched off. To engage or disengage the record mute first operate the record monitor function (mon) as described in Paragraph 3. 7 above then press the front panel mute button. The mute button indicator will be illuminated when record mute is engaged and extinguished when record mute is disengaged. 3. 12 Defaults To restore all programmable settings to the factory defaults press and hold the remote handset disp key while the preamplifier is in program mode. [. . . ]