Hertz ES F25.5 [2/2] Electro acoustic parameters
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Hertz ES F25.5 [2/2] Electro acoustic parameters

Hertz ES F25.5 [2/2] Electro acoustic parameters
www.hertzaudiovideo.com
- 62018 Potenza Picena (MC) Italy - T +39 0733 870870 - F +39 0733 870880 - www.elettromedia.it
All Specifi cations Subject to Change Without Notice _ 19/05/2011
Technical Specifi cations
Electro-Acoustic Parameters
1. Ultra Flat design, for maximum installation fl exibility.
2. Massive motor assembly, for perfect control under high power, high excursion
conditions.
3. Water-repellent pressed paper cone.
4. Copper voice coil, wound on aluminium former, for startling thermal and
mechanical capacity.
5. Back Vented Spider support, for perfect symmetry under high excursion and
thermal dissipation.
6. Wide-wave, resin-bonded fi ber spider for mechanical reliability and consistent
parameters.
7. High current, tin-plated terminals.
8. Silver plated lead wires for maximum reliability and conductivity.
9. Basket and motor coupled and damped through special epoxy glue.
10. High thermal dissipation and magnetic permeability plates, providing constant,
even fl ux.
Component Subwoofer
Size mm (inch) 250 (10”)
Power handling W peak 500
cont. program 250
Impedance Ω 4
Frequency response Hz 30 ÷ 300
Sensitivity dB/SPL 92
Outer Diameter mm (inch) 256 (10”
1/16
)
Mounting Diameter mm (inch) 231 (9”
1/8
)
Total Depth mm (inch) 94 (3”
11/16
)
Mounting Depth mm (inch) 83 (3”
1/4
)
Magnet size mm (inch) 140 (5”
1/2
)
Total Driver
Displacement l (ft³) 0,7 (0,025)
Weight of one
component kg (lb) 3,3 (7,26)
Voice Coil Diameter mm (inch) 60 (2”
3/8
)
Magnet High density
fl ux ferrite
Cone Water repellent
pressed paper
*X-mech mm (inch) 13 (1/2”)
* Xmech: maximum mechanic excursion; indicates the
maximum linear motion range of the speaker in both directions.
D mm 215
Xmax mm 6
Re Ω 3
Fs Hz 37
Vas l 42,9
Mms g 82,0
Cms mm/N 0,23
BL T m 10,4
Qts 0,48
Qes 0,52
Qms 5,58
Spl dB 92
ES F25.5 500 W
1k50020010050201010 1kHz
50.0
Ohm
40.0
30.0
20.0
10.0
0.0
A 256 mm 10”
1/16
B 231 mm 9”
1/8
C 94 mm 3”
11/16
D 83 mm 3”
1/4
A
B
CD

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