Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Woven Glass Fiber Cone: The FOCAL Access 30A1DB features a 12" a braided
and watertight, all-weather, woven glass fiber cone for dynamic bass response
Butyl Surround: The FOCAL Access 30A1DB features a butyl rubber surround
to promote long life and durability.
2.5" Voice-Coil: The Access 30A1DB woofer features a 4-layer, 2.5"
voice-coil for higher power handling capabilities up to 250 watt (RMS) and 500
Dual 4-ohm Voice Coils: This woofer features dual 4-ohm
voice coils that offer flexibility in wiring. When the voice coils are wired in
parallel with each other, the woofer presents a 2-ohm mono load. When the voice
coils are wired in series with each other, the woofer presents an 8-ohm mono
load. In addition, each coil may be connected to a different amplifier channel
and each channel will see a 4-ohm load.
Voice Coil Cooling System: The Access 30A1DB's voice-coil cooling system
provided optimized reliability with no dynamic compression.
145mm Magnet: The Access 30A1DB woofer features a 145mm (5.708") magnet
for higher sensitivity up to 91dB (2.83V/1m).
Spring-Posts: The FOCAL 12" woofer is equipped with a pair of
spring-post speaker terminals for easy connection up to 10AWG wire.
Integrated Foam Gasket: The Access 30A1DB features an integrated foam gasket mounting-ring for better chassis damping and to prevent air leakage.
Rubber Magnet Boot: The Access 30A1DB features a rubber magnet boot to
protect the woofer's magnet from shocks and corrosion. The rubber boot is
Recommended Ported Box Volume: The FOCAL Access 30A1DB is
designed to be installed in a sealed box with a volume between 0.883 cu/ft to
1.765 cu/ft. FOCAL recommends a sealed enclosure made out of 3/4" MDF with an
internal volume of 1.412 cu/ft.
Sealed Enclosure Specifications (using 3/4" MDF