DB Drive Speed Series Manuel de l'utilisateur - Page 3
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• 2.5" (63mm) 4 Layer Dual 4 Ohm VC w/
Aluminum Former
• IMPP Cone with Foam Surround
• 40 oz. Ferrite Magnet
Structure
Max Power
Nominal Power
Impedance
PRODUCT SPECIFICATIONS
T/S SPECS
Sensitivity (1W/1m)
DC Resistance
Free Air Resonance
Equivalent Stiffness
Mechanical Q
Electrical Q
Total Q
Moving Mass
Motor Force
Cone Surface Area
PRODUCT FEATURES
SPF10D4
10" (25.4cm) Woofer
1000 Watts
300 Watts
2.5" (63mm) 4Ω Dual Voice Coil
SPL
Re
Fo
Vas
Qms
Qes
Qts
Mms
BL
Sd
• Ultra Thin Stamped Steel Frame Design
• Blue Zinc Finished Top and Bottom Plates
• Mixed C Fiber Spider
• Heavy Gauge Spring Terminals
12" (30.4cm) Woofer
2.5" (63mm) 4Ω Dual Voice Coil
SPF10D4
82.9 dB
6.410 Ω
27.409 Hz
46.185mM
7.757
0.857
0.739
124.362 g
13.464 TM
34.636 mM
3
SPF12D4
1000 Watts
300 Watts
SPF12D4
85.8 dB
7.240 Ω
23.171 Hz
116.847mM
5.802
0.584
0.531
174.423 g
17.739 TM
55.155mM