Sony SA-WX90 Adjusting the Sound, Adjust the cut-offfrequency, Adjust the volume level of the woofer, Play your favorite song and movie, Select the phase polarity

Basic Operations

Adjusting the Sound

You can adjust the sound of the woofer to suit the sound of your front speakers. Reinforcing the bass sound gives you a greater sense of atmosphere.

	LEVEL	CUT OFF FREQ
	PHASE
	NORMAL	REVERSE
MIN	MAX	50Hz	120Hz

LEVEL PHASE CUT OFF FREQ

Note

If the sound distorts when you turn on the bass reinforcement from your amplifier (such as, DBFB, GROOVE, the graphic equalizer, etc.), turn off the bass reinforcement and adjust the sound.

Note

Do not turn the volume of the woofer to maximum. Doing so may weaken the bass sound. Moreover, extraneous noise may be heard.

Note

Selecting NORMAL or REVERSE with the PHASE selector reverses the polarity and may provide better bass reproduction in certain listening environments (depending on the type of front speakers, the position of the woofer and the adjustment of the cut-off frequency). It may also change the expanse and tightness of sound, and effect the feeling of the sound field. Select the setting that provides the sound you prefer when listening in your normal listening position.

1	Adjust the cut-off frequency.
	Turn the CUT OFF FREQ control, depending on the reproduction
	frequencies of your front speakers.		80Hz
	Refer to the following when adjusting.		3	2
		60Hz		100Hz
	1 Typical very small sized speakers: 8 - 10 cm dia.		4	1
	2 Typical small sized speakers: 12 - 15 cm dia.
	3 Typical medium sized speakers: 16 - 24 cm dia.		50Hz	120Hz

4Typical large sized speakers: more than 25 cm dia.

	To make the most of the low level converter function of Dolby digital,
	turn the CUT OFF FREQ as high as possible when playing back the
	Dolby digital (AC-3).
2	Adjust the volume level of the woofer.
	Turn the LEVEL control so that you can hear the bass sound a little
	more than before. To increase the volume, turn the control clockwise.
	To decrease the volume, turn the control counterclockwise.
3	Play your favorite song and movie.
	Male vocal tunes and voice containing bass sounds are most suitable
	for adjustment. Turn the volume for front speakers to the same level
	as usual.
4	Select the phase polarity.
	Use the PHASE selector to select the phase polarity.
5	Repeat steps 1 to 4 to adjust for your preference.
	Once you have adjusted the woofer to the settings you desire, use the

VOLUME control on the amplifier to adjust the volume of the woofer with that of the other speakers. You don’t need to adjust the woofer settings when you change the volume level of the amplifier.

Operations Basic

9GB