Yamaha YAS-70BL Owners Manual - Page 28

Adjusting the virtual speaker settings ■ Adjusting the position of the virtual surround speakers This system employs the Yamaha Air Surround system that enables the surround sound field using the center system and the subwoofer/system control. This system creates the surround sounds by using the reflections on the walls of your listening room. Use this feature to achieve the ideal surround sound. y To reset the volume level and the beam angle of all virtual speaker channels to the factory settings, press INPUT on the front panel while a test tone is output. Center system BEAM L (Left surround virtual speaker angle setting) First reflection point BEAM R (Right surround virtual speaker angle setting) Listening position First reflection point Virtual surround speaker positions y Adjust the angle so that the first reflection point is located posterior to the listening position and the sound of surround speaker channel audio reaches the listening position after reflections. PR/ETSUENTE MEMO SW A/UMTAON'L DISP. MODE NIGHT DEC. MODE CENTER DIMMER ROOM EQ R L SUR. TEST 1,3 2 1 Press TEST to activate the speaker test mode. This system outputs test tones. 2 Press L or R repeatedly to select the desired angle setting of the left or right surround virtual speaker channel. "BEAM L" or "BEAM R" and the angle setting appears in the front panel display. Choice: 20º, 30º, 40º, 50º, 60º BEAM L 40 Selected virtual surround speaker channel Current angle setting 3 Press TEST again to exit from the speaker test mode. y This system automatically returns to the speaker balance setting mode after a few seconds that you perform the operation of step 2. 24 En