SB Acoustics SB15MFC30-8 5" Poly Cone Woofer

SB Acoustics SB15MFC30-8 5" Polypropylene Cone Woofer - 150mm- 8 ohm

Low Q, looks good for small vented box about .35 cf3 (see below). Could be used 2-way with low Fs tweeter.

Manufacturer Specifications PDF

• Vented cast aluminium chassis for optimum strength and low compression
• Mineral filled PP-cone made in-house
• Soft low damping rubber surround for improved transient response
• Non-conducting fibre glass voice coil former for minimum damping
• Extended copper sleeve on pole piece for low inductance and low distortion
• CCAW voice coil for reduced moving mass
• Long life silver lead wires
• Vented pole piece for reduced compression

Suggested boxes:

In 0.15 cubic foot sealed and stuffed box your F3 is about 89Hz.

In 0.35 cubic foot with a 1.5" diameter vent by 6" long your F3 is about 50Hz.