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Product type
Loudspeaker Chassis
Overall diameter
256.8 mm
Pitch Circle Diameter
243.8 mm
Cut- out Measurement
233.8 mm
Diameter of fixing holes
6 mm
Nominal Impedance
4 Ohm(s)
Nominal Load Capacity
150 W
Sensitivity (1 W / 1 m)
96 dB
Frequency response
50 - 4.500 Hz
Voice Coil Material
Aluminum
Depth of the magnetic gap
8 mm
Fs (Resonance Frequency)
55 Hz
Re (DC resistance)
5.9 Ohm(s)
Qms (mechanical quality)
11.3
Le (inductance of the voice coil)
0.41999999999999998 mH
Qes (electrical quality)
0.73999999999999999
Qts (overall quality)
0.69999999999999996
Vas (equivalent volume)
53.4
BL (power factor)
8.2 T/m
Xmax (maximum displacement)
4.67 mm
Cms (elasticity of the suspension)
0.34000000000000002 mm/N
Sd (membrane area)
332 cm²
Rms (mechanical loss resistance)
0.75 kg/s
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High efficiency mid-bass, 2.5” aluminium voice coil,
with very flat response up to 4 kHz.
Specifications
Nominal Diameter 250 mm (10 in.)
Nominal Impedance 8 Ω
Minumum Impedance 6.9 Ω
Power Handling
(60 –600 Hz)
Nominal1 250 W
Continuous Program2 500 W
Sensitivity (1W/1m)3 99 dB
Frequency Range 60-4000 Hz
Voice Coil Diameter 65 mm (2.5 in.)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12 mm (1/2 in.)
Magnetic Gap Depth 8 mm (5/16 in.)
Flux Density 1.25 T
Also available in 16 Ω, data upon request
Thiele & Small Parameters4
Fs 60 Hz
Re 5.7 Ω
Qes 0.19
Qms 6.3
Qts 0.18
Vas 37 dm.3 (1.3 cu. ft.)
Sd 320 cm.2 (49.1 sq. in.)
η0 4.1 %
X max ± 2.4 mm.
Mms 27 gr.
Bl 17.7 Tm
Le 1.3 mH
Mounting and Shipping Informations
Overall Diameter 260 mm. (10.2 in.)
Bolt Circle Diameter 244 mm. (9.6 in.)
Baffle Cutout Diameter 228 mm. (8.8 in.)
Depth 110 mm. (4.3 in.)
Flange and Gasket Thickness 17 mm. (2/3 in.)
Net Weight 7.1 Kg. (15.6 lb.)
Shipping Weight 7.8 Kg. (17.2 lb.)
Shipping Box 320x320x160 mm
(12x12x6.3 in.)
1 2 hours test made with continuous pink noise signal (6 dB crest factor) within the
specified range . Power calculated on rated minimum impedance. Loudspeaker in
free air.
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3 Applied RMS Voltage is set to 2.83V for 8 ohms and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 4000 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.
| 2.5" voice coil Fiberglass former and Aluminium Winding
PS Spider with Progressive Waves
DAR Cloth surround with Double Asymmetric Rolls Technology (DAR)
WpT Waterproof Cone Treatment
BMF Balanced Ferrite Magnet Circuit with Aluminium Demodulating Ring
VMVc Ventilated Magnet and Voice Coil to reduce Power Compression
96.3 dB sensitivity
Frequency Range 55-3500 Hz
Shape Cylindrical
Product type Cone driver
Brand Sica
Frequency coverage type Low, Midbass, Midrange
Dimensional category 10.5 inch
Front chape Cylindrical
External diametre 268 mm
Mounting diametre 229.8 mm
Magnet type Ferrite
Basket masterial Aluminium
Nominal impedance 8 ohm
Nominal power handling 300 W
Max power handling 600 W
Manufacturer sensitivity 96.3 dB
Calculated sensitivity 94 dB
Frequency response 55-3500 Hz
Voice coil diameter 2.5 inch
Winding material Aluminium
Voice coil former Glass fiber
Winding depth 12 mm
Gap height 8 mm
Flux density 1.17 T
Depth 119.5 mm
Depth after front 107 mm
Front thickness 12.5 mm
Diamètre aimant (mm) 145 mm
Weight 5.6 kg
Fs 57 Hz
Re 5.5 ohm
Qes 0.4
Qms 4.23
Qts 0.37
Vas 39.7 L
Sd 346.4 cm²
Cms 233 µm/N
Efficiency 1.76 %
Calculated efficiency 1.77 %
Xmax 4 mm
Xvar 7 mm
Mms 33.5 gr
BL 12.8 T.m
Le 0.46 mH
EBP 143
Dome material Paper
Cone material Paper
Surround material Cloth
Surround shape Double roll
Shipping weight 5.6 kg |
Nominal Diameter 250 mm (10 in)
Overall Diameter 261 mm (10.28 in)
Bolt Circle Diameter 246 mm (9.69 in)
Baffle Cutout Diameter 232 mm (9.13 in)
Depth 141.3 mm (5.56 in)
Flange and Gasket Thickness 12.5 mm (0.49 in)
Net Weight 3.4 Kg (7.5 lb)
Shipping Box
(Single Carton Box) 305x305x185 mm (12x12x7.28 in)
Shipping Weight 4 Kg (8.8 lb)
Nominal Impedance 8 Ohm
Minimum Impedance 6.4 Ohm
Nominal Power Handling *** 500 W
Maximum Power Handling **** 1000 W
Sensitivity (1W/1m) 96 dB
Frequency Range 60÷4000 Hz
Voice Coil Diameter 77 mm (3 in)
Winding Material Al
Former Material Glass Fiber
Winding Depth 18 mm (0.71 in)
Magnetic Gap Depth 10.5 mm (0.41 in)
Flux Density 1.2 T
Fs 60 Hz
Re 5.1 Ohm
Qes 0.28
Qms 3.28
Qts 0.26
Vas 21.6 dm^3 (0.76 ft^3)
Sd 319 cm^2 (49.4 in^2)
Xmax * 7.25 mm
Xdamage ** 12.5 mm
Mms 47 g
Bl 17.9 N/A
Le 0.85 mH
Mmd 44.8 g
Cms 0.15 mm/N
Rms 5.4 Kg/s
Eta Zero 1.6 %
EBP 214 Hz
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DYNACORD MFT2008 (330 983) 10'' Transducer gives excellent horizontal coverage and extremely low distortion.
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