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Old 1st February 2011, 08:49 AM   #1
diyAudio Member
 
Join Date: Dec 2010
Default Home Theater Subwoofer Help

Can someone please help model these two woofers for me? Can you overlap the graphs and give the specifics( max spl,max power,-3db,etc..) Thank you very much. As I am having problems with the program.

18" JBL(two of these)

V
OICE COIL DC RESISTANCE: REVC (OHMS) . . . . . . 2.50
V
OICE COIL INDUCTANCE @ 1 KHZ: LEVC (MH). . . . . . . . 0.98
D
RIVER RADIATING AREA: SD (IN2) . . . . . . . 195.99
S
D (CM2). . . . . . 1270.00
M
OTOR FORCE FACTOR: BL (TM) . . . . . . . . 13.51
C
OMPLIANCE VOLUME: VAS (FT3). . . . . . . . 15.37
V
AS (LITERS). . . . . 362.61
S
USPENSION COMPLIANCE: CMS M/N) . . . . 158.32
M
OVING M***, AIR LOAD: MMS (GRAMS) . . . . 177.77
M
OVING M***, DIAPHRAGM: MMD (GRAMS). . . . 151.75
F
REE-AIR RESONANCE: FS (HZ) . . . . . . . . 30.00
M
ECHANICAL Q: QMS. . . . . . . . . . . . 6.77
E
LECTRICAL Q: QES . . . . . . . . . . . . 0.46
T
OTAL Q: QTS . . . . . . . . . . . . 0.43
M
AGNETIC-GAP HEIGHT: HAG (IN) . . . . . . . . . 0.32
H
AG (MM) . . . . . . . . 8.13
V
OICE-COIL HEIGHT: HVC (IN) . . . . . . . . . 0.75
H
VC (MM) . . . . . . . 19.05
M
AXIMUM EXCURSION: XMAX (IN) . . . . . . . . 0.22

X
MAX (MM). . . . . . . . 5.46
S
ENSITIVITY (2.83 V @ 1 M): 95 dB

P
OWER HANDLING: 600 WRMS

15" Stillwater Designs(four of these)

Revc...6.88 ohms
Vc mH...1.33
Bl...17.114
Vas liters...415.6...cu ft...11.77
MMs grams...208.69
Fs...17hz
Qms...10.23
Qes... 0.53
Qts...0.504
Xmax...9.52mm
Pmax...750watts
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Old 5th February 2011, 12:01 AM   #2
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Join Date: Dec 2010
Done. 10 cf 14hz . Thanks
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