ACCESS
25A4
10" (25cm) subwoofer
• DFS® Cone
• Sealed or ported enclosure
FREQUENCY RESPONSE/IMPEDANCE
Sealed enclosure
15 litres / 0.52 cu.ft
MECHANICAL DRAWING
20 litres / 0.70 cu.ft
25 litres / 0.88 cu.ft
SPECIFICATIONS
Nominal power 200W RMS
Maximum power 400W
Sensitivity (2,83V/1m) 85.45dB
®
Cone DFS
Surround Butyl
Nom. impedance 4 Ohms
DC resistance 4.2 Ohms
VC diameter 50mm 2"
VC height 25mm 1"
Former Kapton
Layers 4
Wire Copper
Inductance 2.85mH
Xmax ± 8.5mm 0
Magnet d x h 120mm x 30mm 4
Magnet weight 1250g 2.75 lbs
Flux density 0.8T
Gap height 8mm 0
Net weight 3.5kg 7.7 lbs
(Dual Fiberglass Structure)
5/16
"
23/32
" x 1
5/16
"
PARAMETERS
Fs 23.5Hz
Vas 49.85 liters
Qts 0.506
Qes 0.562
Qms 5.059
Re 4.19 Ohms
Sd 330.06cm
Cas 3.55E-07 m5/N
Mas 129.23kg/m
Ras 3771.9 Ohms.ac
Cms 3.26E-04 m/N
Mms 140.79g
Rms 4.109Kg/s
Ces 908.39mF
Les 50.49mH
Res 37.72 Ohms
BI 12.45N/A
SPL 82.45 dB/W/m
2
4
SUGGESTED APPLICATION
Load Volume F-3 (Hz)
Sealed 15l-0.52cu.ft 38Hz
Sealed 20l-0.70cu.ft 35Hz
Sealed 25l-0.88cu.ft 35Hz
3/16
"
Load Volume Port Ø Port lenght F-3 (Hz)
Ported 20l-0.70cu.ft 9 cm-3
Ported 30l-1.05cu.ft 9 cm-3
Ported 35l-1.23cu.ft 9 cm-3
Performance
CREATE YOUR SOUND
Focal® is a trademark of Focal-JMlab®-Tel. (33) 04 77 43 57 00 - www.focal.com - Images may not conform exactly to specific product. Photos L’Atelier Sylvain Madelon - SCFG131113/1
1/2
" 35 cm-13
1/2
" 35 cm-13
1/2
" 35 cm-13
3/4
" 38Hz
3/4
" 32Hz
3/4
" 31Hz