Yamaha RX-V640RDS 1B MAIN main speaker mode, 1C REAR LR rear speaker mode, 1E BASS bass out mode

SET MENU

■1B MAIN (main speaker mode)

Choices: LARGE, SMALL

LARGE

Select this if you have large main speakers. The unit directs the entire range of the main left and right channel signals to the main left and right speakers.

SMALL

Select this if you have small main speakers. The unit directs the low-frequency signals (90 Hz and below) of the main channel to the speakers selected with “1E BASS”.

■1C REAR LR (rear speaker mode)

Choices: LRG (large), SML (small), NON (none)

LRG

Select this if you have large rear left and right speakers or if a rear subwoofer is connected to the rear speakers. The entire range of the rear channel signal is directed to the rear left and right speakers.

SML

Select this if you have small rear left and right speakers. The low-frequency signals (90 Hz and below) of the rear channel are directed to the speakers selected with “1E BASS”.

NON

Select this if you do not have rear speakers.

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•This unit is set in the virtual CINEMA DSP mode when you select NON for “1C REAR LR”. In this case, the rear center speaker will automatically be set to NON and the “1D REAR CT” item will be skipped.

■1D REAR CT (rear center speaker mode)

If you add a rear center speaker to your speaker configuration, this unit can provide more realistic front- to-back transitions.

Choices: LRG (large), SML (small), NON (none)

LRG

Select this if you have a large rear center speaker. The unit directs the entire range of the rear center channel signal to the rear center speaker.

SML

Select this if you have a small rear center speaker. The unit directs the low-frequency signals (90 Hz and below) of the rear center channel to the speakers selected with “1E BASS”.

NON

Select this if you do not have a rear center speaker. The unit directs all of the rear center channel signal to the rear left and right speakers.

■1E BASS (bass out mode)

LFE signals carry low-frequency effects when this unit decodes a Dolby Digital or DTS signal. Low-frequency signals are defined as 90 Hz and below. The Low- frequency signals can be directed to both main left and right speakers, and to the subwoofer (subwoofer can be used for both stereo reproduction and the DSP program).

Choices: SWFR (subwoofer), MAIN, BOTH

SWFR

Select this if you use a subwoofer. The unit directs the LFE signals to the subwoofer.

MAIN

Select this if you do not use a subwoofer. The unit directs LFE signals to the main speakers.

BOTH

The unit directs LFE signals to the subwoofer. Low- frequency signals designated to the main channels in accordance with other speaker mode settings are directed to both main speakers and the subwoofer.

Note

•When you select MAIN for “1E BASS”, the unit directs the low-frequency signals (90 Hz and below) of the main channel to the main speakers even if you select SMALL for the main speaker mode.

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