SB Acoustics SB23NRXS45-48" Coated Norex Paper Cone Woofer
SB Acoustics 8" coated paper cone woofer. 4 ohms impedance. The woofer has a proprietary composition paper cone made in-house and a rigid cast frame with ventilated spider and large vented pole piece. A low damping rubber surround assures decent midrange reproduction. A shorting ring is used in the motor to reduce intermodulation distortion and improve inductance symmetry. The woofer has a large 1.75" diameter voice coil with 6.5mm x-max on a non-inductive fiberglass former. 234mm frame, 205mm cutout.
Special Features
- Soft low-damping rubber surround for improved transient response
- Shorting ring in-motor system for reduced distortion
- Vented pole piece for reduced compression
- Vented cast-aluminum chassis for optimum strength and low compression
- Shallow design (3-1/8" depth)
- Non-conducting fiberglass voice coil former for minimum damping
- CCAW voice coil for reduced moving mass
- Long-life silver lead-wire
Suggested Box Alignments
- 0.4 to 0.7 cubic foot sealed box for 3dB down of 70Hz, F6 of 51Hz
- 1.0 cubic foot vented box with 2" diameter vent by 4" long for F3 of 40Hz
- 1.25 cubic foot vented box with 2" diameter vent by 3.25" long (or 3" x 8.5") for F3 of 38Hz
- 1.5 cubic foot vented box with 2" diameter vent by 3" long (or 3" x 8") for F3 of 35Hz
Manufacturer Specifications PDF