重低音Phase control 問題?

wd3933

各位Brothers,
本人用Energy-ESW M8 subwoofer,位置只可放在右邊喇叭(書架式連腳架)正前面向左5cm,離前置喇叭8cm,離側牆30cm,,phase control 應調校多少度?其實多小度點解?以及這個sw有三個相同大小的單元,一個active,兩個passive,請問passive意思是什麽?

Thanks
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Specifications
System Type Single active, dual passive
Frequency Response 36Hz-200Hz
Power Handling Off / Auto / On
Amplifier Power Output 1200 Watts
Woofer Active: 8-inch (20 cm) Black anodized aluminum cone with inverted Ribbed Elliptical Surround
Passive: 2 x 8-inch (20 cm) Black anodized aluminum cones with inverted Ribbed Elliptical Surround
Variable Low Pass Filter 50Hz-200Hz, bypass
Variable Phase Control 0° - 360°
Inputs L + R Line in/Sub in
Overall Dimensions HxWxD
9 x 9 x 9 inches
22.7 x 22.7 x 22.7 cm
Weight 16.7 lbs. / 7.6 kg
Max Driver Excursion 102.6dB @ 30Hz, ground plane, 1m
Finishes High gloss black
UPC 629303-30029-9
Part Number 1009502

http://www.energy-speakers.com/n ... -m8-specifications/

raymond430

passive係指幅射喇叭,主要係靠主動喇叭嘅活動而引動,此設計係有效地加強低音嘅質和量.
phase control 應調校多少度  呢樣就要慢慢試,調至d低音最實就ok.

wd3933

thank you - raymond430