W12CY001 E0021
W12CY001
E0021
The W12CY001 is a 12cm (4,5’’) cone driver developed for use as a high fidelity woofer/
midrange unit. The extremely stiff, yet light cone gives tremendous bass precision and
midrange detail.
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.
An extra large magnet system for good sensitivity and transient response.
Copper plating of the top and bottom plates and a solid copper phase plug, which
enhance the performance of the copper rings and improve heat conducion away from the
pole piece.
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.
100
50
95
90
40
85
SPL [dB]
30
75
70
20
65
Impedance [ohm]
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 2.5L 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
5.6 Ohms
Recommended Frequency Range
60 - 3500 Hz
Voice Coil Inductance
0.43 mH
Short Term Power Handling *
200 W
Force Factor
5.4 N/A
Long Term Power Handling *
70 W
Free Air Resonance
45 Hz
Characteristic Sensitivity (2,83V, 1m)
84.0 dB
Moving Mass
7.5 g
Voice Coil Diameter
26 mm
Air Load Mass In IEC Baffle
0.21 g
Voice Coil Height
12 mm
Suspension Compliance
1.7 mm/N
Air Gap Height
6 mm
Suspension Mechanical Resistance
0.87 Ns/m
Linear Coil Travel (p-p)
6 mm
Effective Piston Area
50 cm2
Maximum Coil Travel (p-p)
9 mm
VAS
6 Litres
Magnetic Gap Flux Density
1.1 T
QMS
2.50
Magnet Weight
0.42 kg
QES
0.42
Total Weight
1.21 kg
QTS
0.36
Jul 2007-1
RoHS compliant product
*IEC 268-5
SEAS reserves the right to change technical data
EW15-201
www.seas.no
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