Wharfedale PANTONE 539 - Manual (Page 18)

Frame material
Cone & dome material
Surround
Spiders
Coil size & type
Winding spec
Magnet
Magnet weight
Gap flux density
Top plate thickness
Pistonic range
Venting
Thiele/small parameters
Effective cone diameter
Re
Fs
Qms
Qes
Qts
Mms
Cms
Vas
BL
Die cast aluminium
Glass/carbon/glass sandwich
Half roll sb rubber
Dual spaced at 10mm
51mm resin bond glass
2 layer round cu x 15mm
120 dia x 90 dia x 60 alnico
2232 grm
1.2T
15mm
Up to 300Hz
Cone, coil, pole, spiders, chassis and magnet cavity.
330mm
5.7 ohm
20Hz
18.22
0.31
0.30
133 gm
0.48 mm/N
490L
17.5 T/M
380MM 15” SPECIFICATIONS
Frame material
Cone & dome material
Surround
Spider
Coil size & type
Winding spec
Magnet D1 x D2 x H
Magnet weight
Gap flux density
Top plate thickness
Optimum working range
Venting
Thiele/small parameters
Effective cone diameter
Re
Fs
Qms
Qes
Qts
Mms
Cms
Vas
BL
Die cast aluminium
Kevlar/paper
s b r single roll
single
25mm aluminium
2 layer round cu x 10mm
86 dia x 62 x 44 alnico
868 gm
1.0 T
6mm
80Hz – 250 Hz
Cone, coil, pole
165mm
5.2 ohm
50Hz
8.31
1.01
0.90
19 gm
0.48 mm/N
31 L
5.69 T/M
200MM 8” SPECIFICATIONS
Specifications 21/01/03 11:22 am Page 3