Yamaha YST-SW225 - Manual (Page 17)

13
ADJUSTING THE SUBWOOFER BEFORE USE
This subwoofer’s frequency characteristics
The figures below show the optimum adjustment of each control and the frequency characteristics when this subwoofer
is combined with a typical front speaker system.
■
EX.1 When combined with a 4” or 5” (10 cm or 13 cm) acoustic suspension, 2 way system front
speakers
If you are using NS-225F speakers as front speakers, use the following example as a reference when adjusting settings.
■
EX.2 When combined with an 8” or 10” (20 cm or 25 cm) acoustic suspension, 2 way system front
speakers
*This diagram does not depict actual frequency response characteristics accurately.
Frequency characteristics
(90Hz) (REV)
(70Hz) (REV)
20 50 100 200 500Hz
40
50
60
70
80
90
dB
HIGH CUT
40 Hz
HIGH CUT 140 Hz
HIGH CUT 90 Hz
PHASE
REV NORM
20 50 100 200 500Hz
40
50
60
70
80
90
dB
YST-SW225
Front
speaker
Frequency response graph*
PHASE
REV NORM
20 50 100 200 500Hz
40
50
60
70
80
90
dB
YST-SW225
Front
speaker
Frequency response graph*
YST-SW225UB.book Page 13 Tuesday, July 27, 2004 10:25 AM