Specifications:
1) Nominal diameter-----------12"
2) Nominal impedance-------- 8Ω
3) Power (RMS)------------------ 300W
4) Sensitivity (1W/1m)------------ 98dB
5) Frequency range--------------- 50-3,000Hz
6) Voice coil diameter------------- 3"
7) Fs----------------------------------- 50Hz
8) Re (D.C.)------------------------- 4.5Ω
9) Qms-------------------------------- 2.5
10) Qes------------------------------ 0.28
11) Qts------------------------------ 0.25
12) Vas----------------------------- 75L
13) Cms----------------------------- 0.17mm/N
14) N. (%)---------------------------- 3.5%
15) Bl--------------------------------- 16.8T
16) Sd--------------------------------- 0.035m2
17) Basket:-------------------------- die-cast aluminum
18) Cone material---------------- paper
19) Surrounding--------------------- cloth
20) Voice coil wire material------- copper clad aluminum
21) Voice coil bobbin----------------Kapton
22) Magnet----------------------------200*20mm
23) Overall diameter--------------- Φ314mm
24) Bolt circle diameter------------ Φ295mm, 8-Φ6.5mm holes
25) Cut out diameter---------------Φ286mm
26) Depth----------------------------- 132mm
27) N.W.------------------------------ 8.5kg
28)Gross weight------------------ 9.3kg