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Инструкция для Seas Excel E 0047-04 T29MF001

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Инструкция для
Seas Excel E 0047-04 T29MF001
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Magnum
T29MF001
E0047
The T29MF001, “MAGNUM” is a 25mm magnesium dome tweeter with a patented
Neodymium based magnet system. It is the tweeter of choice for those who seek extremely
precise and realistic sound reproduction combined with a relatively low crossover frequency.
A unique HEXADYM patented magnet system based on 6 radially magnetized NdFeB magnet
blocks. Efficient ventilation and damping of every potentially resonant cavity behind the
dome, surround and voice coil. Moderate magnetic stray fields present no problems in AV
installations.
A generously underhung voice coil ( + and - 0.5mm ) ensures low distortion even with low
crossover frequencies.
An optimally shaped magnesium dome membrane which behaves like a piston throughout the
audible frequency range and shows a controlled break up above it.
A homogenous, linear surround manufactured by SEAS from SONOMAX, a soft polymer
material of high climatic stability.
Flexible lead-out wires which ensure a good connection between voice coil and terminals.
This arrangement also helps to prevent lead breakage due to the large excursions encountered
when low crossover frequencies are used.
Low viscosity magnetic fluid which provides excellent cooling while maintaining a low
resonance frequency.
6,0 mm machined aluminium front plate with a moderate horn loading characteristic which
ensures linear frequency response, and a stiff and stable connection to the cabinet.
A substantial injection-moulded rear chamber made from zink eliminates unwanted chamber
wall resonances and conducts heat away from the magnet system.
100
50
95
40
90
85
SPL [dB]
75
20
70
65
Impedance [ohm]
30
80
10
60
55
0
50
100
1 000
10 000
Frequency [Hz]
The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees, mounted in a 0.6m by
0.8m baffle. Input 2.83 VRMS, microphone distance 0.5m, normalized to SPL 1m. The impedance is measured without baffle
using a 2V sine signal.
Nominal Impedance
4 Ohms
Voice Coil Resistance
3.5 Ohms
Recommended Frequency Range
2000 - 25000 Hz
Voice Coil Inductance
0.03 mH
Short Term Power Handling *
200 W
Force Factor
3.0 N/A
Long Term Power Handling *
90 W
Free Air Resonance
500 Hz
Characteristic Sensitivity (2.83V, 1m)
92.0 dB
Moving Mass
0.35 g
Voice Coil Diameter
26 mm
Effective Piston Area
8 cm2
Voice Coil Height
1.1 mm
Magnetic Gap Flux Density
1.9 T
Air Gap Height
2.5 mm
Magnet Weight
53 g
Linear Coil Travel (p-p)
1.4 mm
Total Weight
0.61 kg
Jul 2007-1
RoHS compliant product
*IEC 268-5, via High Pass Butterworth Filter 2500Hz 12 dB/oct.
SEAS reserves the right to change technical data
ET29-004
www.seas.no
Seas Excel E 0047-04 T29MF001
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