SB, SB23NBACS45-4

SB Acoustics, SB23NBACS45-4, 8″ Black, Aluminum Cone Woofer.

A very nice woofer from SB Acoustics that features a black Aluminum cone.  The cone incorporates symmetrical ridges in the cone to further stiffen it. This moves the breakup mode out to where you can easily use this woofer in a two-way system.

Like every other SB driver, this one features a rugged cast aluminum frame, large voice coil, and rubber surround.

• Imp – 4 ohm
• Fs – 27Hz
• Qts – .30
• Vas – 87.5 L
• SPL – 92dB
• Xmax – 6.5mm
• Outer dia – 234mm
• Cut out – 205mm
• Depth – 81mm