L26RO4Y D1004

L26RO4Y D1004
L26RO4Y
D1004
Extremely stiff and rigid aluminium cone gives tremendous bass precision. The cone
and the long throw low loss rubber surround show no sign of the familiar cone edge
resonance and distortion associated with soft cones.
Lead-out wires symetrically stitched to the spider to avoid resonances. Total suspension designed to assure stability for extreme excursions.
4-layer, extremely long, high temperature voice coil wound on an glassfiber voice
coil former gives a high power handling capacity.
Cu-cap around the pole pieces reduce non linear and modulation distortion and
increase overload margin.
Extra large magnet system provides high efficiency and low Q.
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 reflection, air flow noise and cavity resonance to a minimum.
100
50
95
90
40
SPL [dB]
80
30
75
70
20
65
60
Impedance [ohm]
85
10
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 28L 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
4 Ohms
Voice Coil Resistance
3.3 Ohms
Recommended Frequency Range
20 - 1000 Hz
Voice Coil Inductance
3.85 mH
Short Term Power Handling *
500 W
Force Factor
18 N/A
Long Term Power Handling *
250 W
Free Air Resonance
24 Hz
Characteristic Sensitivity (2,83V, 1m)
85.5 dB
Moving Mass
173 g
Voice Coil Diameter
56 mm
Air Load Mass In IEC Baffle
4.0 g
Voice Coil Height
38 mm
Suspension Compliance
0.26 mm/N
Air Gap Height
10 mm
Suspension Mechanical Resistance
5.4 Ns/m
Linear Coil Travel (p-p)
28 mm
Effective Piston Area
363 cm2
Maximum Coil Travel (p-p)
56 mm
VAS
46 Litres
Magnetic Gap Flux Density
1.1 T
QMS
4.90
Magnet Weight
2.34 kg
QES
0.28
Total Weight
10 kg
QTS
0.27
Jun 2011-1
RoHS compliant product
*IEC 268-5
SEAS reserves the right to change technical data
www.seas.no
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