SB Acoustics SB12PFC25R-04 4" Reed Cone Mid-bass- 4 ohms-Round
- 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