W22EX001
E0022
Precision cast and surface treated magnesium cone coupled to a natural rubber
surround showing no sign of midrange (edge) resonances.
Heavy copper rings mounted above and below the T-shaped pole piece reduce non
linear and modulation distortion and increase overload margin.
Extremely stiff and stable injection moulded metal basket keeps the critical
components in perfect alignment. Large windows in the basket both above and
below the spider reduce sound reflexion, air flow noise and cavity resonance to a
minimum.
A solid copper phase plug enhances the performance of the copper rings and
improves heat conduction away from the pole piece.
Gold plated terminals mounted on a glass fibre reinforced plate to reduce contact
resistance and improve reliability.
100
50
95
90
40
85
SPL [dB]
75
20
70
65
Impedance [ohm]
30
80
10
60
55
50
10
0
100
1 000
10 000
Frequency [Hz]
The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees angle using a 21L closed box. Input
2.83 VRMS, microphone distance 0.5m, normalized to SPL 1m.The dotted line is a calculated response in infinite baffle
based on the parameters given for this specific driver. The impedance is measured in free air without baffle using a 2V
sine signal.
Nominal Impedance
8 Ohms
Voice Coil Resistance
6.1 Ohms
Recommended Frequency Range
30 - 2000 Hz
Voice Coil Inductance
0.61 mH
Short Term Power Handling *
300 W
Force Factor
8.1 N/A
Long Term Power Handling *
120 W
Free Air Resonance
25 Hz
Characteristic Sensitivity (2,83V, 1m)
88 dB
Moving Mass
26.2 g
Voice Coil Diameter
39 mm
Air Load Mass In IEC Baffle
1.89 g
Voice Coil Height
16 mm
Suspension Compliance
1.5 mm/N
Air Gap Height
6 mm
Suspension Mechanical Resistance
2.06 Ns/m
Linear Coil Travel (p-p)
10 mm
Effective Piston Area
220 cm2
Maximum Coil Travel (p-p)
21 mm
VAS
98 Litres
Magnetic Gap Flux Density
1.00 T
QMS
2.14
Magnet Weight
0.64 kg
QES
0.41
Total Weight
2.20 kg
QTS
0.34
Jul 2007-1
RoHS compliant product
*IEC 268-5
SEAS reserves the right to change technical data
EW22-001
www.seas.no