• 6.5" bass / midrange with cast Zamak frame
• Utopia "W" 3 layer sandwich cone
• Double magnetic shield for video
•32 mm edge wound flat copper voice coil with aluminum phase plug
The Focal 6 W 4311 B has surprising deep bass for a 6.5" woofer with
a flat response to 8000 Hz. It has excellent inner detail and dynamics.
It has 10 ohm impedance for dual woofers and line arrays and is an easy load
for tube amplifiers. It features a rubber surround for long stroke and long
life and is an excellent match with ribbons at 3000 Hz crossover. For best
performance use a 36 liter vented enclosure for -3dB at 37 Hz. The
40 Hz port tube is 3 inch diameter by 6 inch long. A 18 liter
sealed box is - 3 dB at 72 Hz.
