User manual MERIDIAN G61RSL DIGITAL SURROUND INSTALLATION GUIDE

[. . . ] G61R Digital Surround Controller Installation Guide ii Preface Important safety instructions · Read the instructions. · Do not use this apparatus near water. · Install only in accordance with the manufacturer's instructions. · Refer all servicing to approved service personnel. [. . . ] The sound appears diffused, and changes in timbre and apparent location as you move your head. · Use A and V to change the distance. · You can press Units to change between feet/inches and metres. Repeat this for each of the speakers in your layout. · Press > to proceed to the next calibration stage. Pay particular attention to the centre channel, as this can have a Fine tuning These tests allow you to fine-tune the phase and delay of each speaker when used in conjunction with other speakers on the layout. · Use > and < to move between each of the speakers in the layout. The first display allows you to adjust the phase. For example: Press More for help dramatic effect on the overall sound. · Press > to proceed to the next calibration stage. Left ìî Phase ïñ óòô + öõú Speaker size These tests allow you to determine the bass handling capability of subwoofers and large analogue speakers. Once set, the digital surround controller will limit the bass level to protect the speakers from potential damage. On starting the test the speaker sizes are set to zero to avoid the possibility of damaging the speakers, and the display shows: Press More for help Calibrating the system Sizes set to zero ìî ïñ óòô öõú The display then shows the first large analogue speaker; for example: Press More for help Left ìî Size ïñ 0 óòô öõú · Press A or V to adjust the size value for the speaker until it just begins to distort distinctly, and then reduce the value by one. · Press > or < to move between each of the speakers to be adjusted. This is the last test in the calibration procedure; see To complete the calibration procedure, page 28. Calibrating the system Using the Sine/Sub/Sens controls This section explains how to use the Sine/Sub/Sens controls to check for room resonances, adjust the subwoofer crossover frequency, or adjust the sensitivity of the analogue sources. The display shows the current crossover frequency: To display the Sine/Sub/Sens controls · If necessary, unlock the digital surround controller as described in · Press Xovr- or Xovr+ to decrease or increase the crossover frequency. Configuration Wizard, page 17. · Select a source and press More until the bottom line of the display shows: CD Sine Xover -Xover+ 85Hz -Sens. + For THX loudspeaker systems you should not adjust these settings; they should be left at 80Hz. 80Hz is also the recommended setting for all movie listening. You may prefer, however, to lower the crossover frequency for music if the main speakers have good bass handling down to, say, 50Hz. · Press Sine/Sub/Sens. The bottom line of the display shows the Sine/Sub/Sens controls: Sinewave sweep test The G61R includes a sinewave signal test, to help you set the subwoofer crossover frequencies, or check for room resonances. To avoid possible damage to the speakers the volume is reduced to 50 on entering the test. Subwoofer crossover frequency The G61R Digital Surround Controller allows the crossover frequency for any subwoofers which you have to be adjusted between 30 and 150Hz. The crossover can be set independently for Music, Logic, and 5. 1 Movie layouts. The default is the THX standard of 80Hz. To adjust the subwoofer crossover frequency · Select a source, then display the Sine/Sub/Sens controls as described above. Warning: This test is very loud. Bass protection is turned off during this test, and very loud low-frequency signals may damage the speakers. To use the sinewave sweep test · Select a source, then display the Sine/Sub/Sens controls as described above. [. . . ] To change the mains fuse · Remove the mains connector, and pull out the drawer above the power input to access the fuse. Before replacing a blown fuse, it is best to ascertain the cause of the failure. This should be replaced by a fuse of the same rating. Tr o u b l e s h o o t i n g Tr o u b l e s h o o t i n g Service and guarantee Service The Meridian G Series of hi-fi components has been carefully designed to give years of untroubled service. There are no userserviceable parts inside the case, nor do the units require any form of maintenance. [. . . ]