ACCESS
30A4
12" (30cm) subwoofer
• DFS® Cone
• Sealed or ported enclosure
FREQUENCY RESPONSE/IMPEDANCE
Sealed enclosure
MECHANICAL DRAWING
SPECIFICATIONS
Nominal power 250W RMS
Maximum power 500W
Sensitivity (2,83V/1m) 87.18dB
®
Cone DFS
Surround Butyl
Nom. impedance 4 Ohms
DC resistance 4 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 3.7kg 8.1 lbs
(Dual Fiberglass Structure)
5/16
"
23/32
" x 1
5/16
"
3/16
"
PARAMETERS
Fs 24.7Hz
Vas 86.91 liters
Qts 0.671
Qes 0.764
Qms 5.49
Re 4.01 Ohms
Sd 510.71cm
Cas 6.19E-07 m5/N
Mas 67.1kg/m
Ras 1896.71 Ohms.ac
Cms 2.37E-04 m/N
Mms 175g
Rms 4.947Kg/s
Ces 1227.64mF
30 litres / 1.05 cu.ft25 litres / 0.88 cu.ft20 litres / 0.70 cu.ft
Les 33.82mH
Res 28.82 Ohms
BI 11.94N/A
SPL 84.18 dB/W/m
2
4
SUGGESTED APPLICATION
Load Volume F-3 (Hz)
Sealed 20l-0.70cu.ft 38Hz
Sealed 25l-0.88cu-ft 35Hz
Sealed 30l-1.05cu-ft 32Hz
Load Volume Port Ø Port lenght F-3 (Hz)
Ported 25l-0.88cu.ft 9 cm-3
Ported 30l-1.05cu-ft 9 cm-3
Ported 35l-1.23cu-ft 9 cm-3
1/2
" 35 cm-13
1/2
" 35 cm-13
1/2
" 35 cm-13
3/4
" 38Hz
3/4
" 35Hz
3/4
" 34Hz
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