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W-12-257A-8-75

Nominal power handling
voice coil diameter
Frequency range
Sensitivity

Specifications

MECHANICAL SPECIFICATIONS




 


Overall diameter 

315.5 mm 

Bolt circle diameter 

299 mm 

Baffle cutout diameter 

238.5 mm 

Depth 

126 mm 

Flange and Gasket 

16 mm 

Net weight 

7.3 kg 

Shipping box (single carton box)

340x340x210 mm 

ELECTRICAL SPECIFICATIONS


 


Nominal diameter

12 inch 

Nominal impedance 

8 Ω 

DC resistance 

5.6 Ω 

Nominal power handling

350 W 

Continuous power handling 

700 W 

Sensitivity (1W/1m)

98 ± 2dB

Frequency range (-10dB max) 

52-3500 Hz 

Voice coil diameter 

75 mm 

Voice coil material 

Outside 1 Layer CU 

Former material 

TIL 

Winding depth 

17 mm 

T yoke 

15 mm 

Plate 

10 mm 

Magnet

190*85*20(80OZ)

Basket 

Cast aluminium 

THIELE & SMALL PARAMETERS 



Fo 

52 Hz 

Revc 

5.6 Ω 

Sd 

53.09 m M2 

Vas 

59.35 L 

Cms 

148.27 u M/N 

Mmd 

54.5 m Kg 

Mms 

61.53 g 

Bl 

20.14 N/A 

Qms

8.54 

Qes 

0.28 

Qts 

0.27 

Levc

870.02 u H 

No 

2.99% 

Xmax 

±4 mm 

(1) 24 hours in free air according to EIA-426B 

(2) 1 inch=25.4mm

(3)Xmax=(Winding depth -Plate)/2