Yamaha 90 ADJUSTING VOLUME, Front panel, Rear panel, FREQUENCY RESPONSE, YST-SW90, YST-SW160, PHASE, VOLUME, VOLUME, HIGH CUT, STANDBY/ON, This unit’s frequency response

ADJUSTING VOLUME

Adjustment of the HIGH CUT control, the VOLUME control and the PHASE switch needs to be changed according to the main speakers, listening condition, source, etc.

Front panel						Rear panel
YST-SW160			YST-SW90			PHASE
STANDBY/ON	HIGH CUT	VOLUME	STANDBY/ON	HIGH CUT	VOLUME
						NOM REV
	40 Hz 140 Hz	0 10		50 Hz 150 Hz	0 10
3	5	1,6	3	5	1,6	7

1 Set the VOLUME control to minimum (0).

2 Turn on the other components.

3 Press the STANDBY/ON button to turn on this unit.

4 Play any source and adjust the amplifier’s volume control to the desired listening level. 5 Adjust the HIGH CUT control according to the main speakers connected.

Normally, set the control to the main speaker’s rated minimum reproducible frequency*. If the desired response cannot be obtained, adjust the control again to your preference.

*The main speaker’s rated minimum reproducible frequency can be looked up in the speakers’ catalog or owner’s manual.

6 Turn up the VOLUME control gradually to adjust the volume balance between this unit and the main speakers.

Normally, set the control to the level where you can obtain a little more bass effect than when this unit is not used. If the desired response cannot be obtained, adjust the control again to your preference.

7 Set the PHASE switch to the position which gives you the better bass sound.

Normally, set the switch to the REV (reverse) position. If the desired response cannot be obtained, set the switch to the NOM (normal) position.

Once the volume balance between this unit and the main speakers is adjusted, you can adjust the volume of your whole sound system by using only the amplifier’s volume control.

FREQUENCY RESPONSE

This unit’s frequency response

		YST-SW160								YST-SW90
dB								dB
				HIGH CUT 40 Hz								HIGH CUT 100 Hz
90					HIGH CUT 90 Hz			90						HIGH CUT 150		Hz
80						HIGH CUT 140 Hz		80
								70
70
								60
60									HIGH CUT 50 Hz
								50
50
								40
40
								20	50		100		200		500Hz
20	50		100			200	500Hz

8