SPECIFICATION
Nominal Diameter 21 inch
Nominal Impedance 8 ohm
Cone material Black Paper
Edge Cloth
Maximum Power 900 watt
Magnet Weight 94.50 Oz
Frequency Response 29 Hz – 2.7 KHz
Sensitivity 1 M / 1 W 95 dB
Voice Coil Diameter 3.9 inch / 992 mm
THIELE SMALL PARAMETER
Resonance Frequency Fs 29 Hz
DC resistance Re 6 ohm
Mechanical Factor Qms 6.26
Electical Factor Qes 0.52
Total Factor Qts 0.48
BL Factor BL 22.5 N/A
Effective moving mass Mms 241 Gram
Equivalent cas air load Vas 496.3 Liter
Effective piston area Sd 1669.1 Cm2
Voice coil inductance Le 1.15 mH
Half space efficiency Eff 2.19 %
MOUNTING INFORMATION
Overall Diameter 536 mm
Bolt Circle Diameter 522 mm
Bolt Hole Diameter 6.4 mm
Front Mount 487 mm
Overall depth 206 mm
Detailnya disini:
http://acrspeaker.com/productdetail....0&idproduct=73
Harganya : 2 juta pass no nego
CP: 087726751457 (sms only) atau 085352754343
Berat 1 speaker 12,1 KG
