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
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