
The complete perimeter-port enclosure for 4-inch woofers. Adjust the front and rear ports from fully sealed to fully open and tune the bass to your room.
Instant digital delivery: right after checkout, the 3MF file and the 12-step assembly guide are emailed to the address on your PayPal account. Questions first? Email us.
Every step is illustrated. If you can run your printer, you can build this.












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