ADJUSTING THE SUBWOOFER BEFORE USE
Frequency characteristics
This subwoofer’s frequency characteristics
dB | HIGH CUT 40 Hz | |
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90 | HIGH CUT 90 Hz | |
HIGH CUT 140 Hz | ||
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80
70
60
50
40
20 | 50 | 100 | 200 | 500Hz |
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 10 cm (4”) or 13 cm (5”) acoustic suspension,
| PHASE | dB |
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| 90 |
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| NORM REV | 80 |
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| 70 |
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(70Hz) | (REV) | 60 | Front |
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| 50 | speaker |
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| 40 |
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| 20 | 50 | 100 | 200 | 500Hz |
Frequency response graph*
■EX.2 When combined with 20 cm (8”) or 25 cm (10”) acoustic suspension,
PHASE dB
90
NORM REV
80
70
(50Hz)(REV)
60Front
speaker
50
40
20 | 50 | 100 | 200 | 500Hz |
Frequency response graph*
*This diagram does not depict actual frequency response characteristics.
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