SB Acoustics SB12PFCR25-08, 4" reed cone mid-bass- 8 ohm- Round

SB Acoustics SB12PFC25R-08 4" Reed Cone Mid-bass- 8 ohm-122mm Round

Spec Sheet PDF

High Q, good for small sealed box. Could be used for autosound.

• Vented reinforced plastic chassis
• Proprietary cone material with natural fibers made in-house
• Butyl rubber surround for smooth frequency response
• Vented motor system for low compression
• Long stroke linear suspension for improved dynamics
• Non-resonant long life lead wires

Some box suggestions:

Sealed box of 0.1 to 0.2 cubic foot with 20% filling for F3 of 105Hz

Vented box of 0.2 to 0.25 cubic foot with single 1” vent by 3.5” long for F3 of 55Hz