SB Acoustics SB23NRXS45-4, 8" Paper Cone Woofer

Manufacturer: SB Acoustics

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Product ID: SB23NRXS45-4

$116.70

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Overview

SB Acoustics SB23NRXS45-4 8" "Norex" Natural Paper Cone Woofer- 234mm- 4 ohm- 92 dB

SB Acoustics SB23NRXS45-4 8" "Norex" Natural Paper Cone Woofer- 234mm- 4 ohm- 92 dB

Spec Sheet PDF

Low Q, good for medium sized vented box (some suggestions below). Shallow depth under 4".

This 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 ensures 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