SB Acoustics SB23NRXS45-4 Norex Woofer

The SB Acoustics SB23NRXS45-4 is an 8 inch 4 ohm woofer / bass speaker featuring a Norex cone, a 45mm voice coil and a shallow profile vented cast aluminium chassis. Norex is a proprietary paper based material comprised of wood pulp and selected natural fibres blended for an optimally strong but lightweight cone that gives extended pistonic action. A versatile unit designed for applications with restricted rear depth.

Also available in 8 ohms: SB23NRXS45-8.

Key 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.
• Non-conducting fibre glass voice coil former for minimum damping.
• CCAW voice coil for reduced moving mass.
• Long life silver lead wires.
• Shallow chassis design.

Basic parameters:

Here's the full datasheet: