SB Acoustics SB17NRX2C35-4 6" Woofer, paper cone, new version, 4 ohm

SB Acoustics SB17NRX2C35-4 6" Woofer, paper cone, new version, 4 ohm
Vented cast aluminum chassis for optimum strength and low compression

New from SB! This model replaces the discontinued SB17NRXC35-4. 
SB17NRXC35-4 + SB29RDCN Passive Crossover Design

• Proprietary cone material with natural fibers made in-house
• Soft low damping rubber surround for transient response
• Non-conducting fiber glass voice coil former for minimum damping
• Extended copper sleeve on pole piece for low inductance and low distortion
• Vented coil former CCAW voice coil for reduced moving mass
• Long life silver lead wires
• Vented pole piece for reduced compression

Suggested Alignments:

• Sealed box of 0.25 cubic feet for an F3 of 85Hz
• Vented box of 0.5 cubic feet with a 2" diameter vent by 6" long for an F3 of 55Hz