Stereo Integrity SQL-12 ported enclosure for a dual 12-inch driver: 3.47 cu ft net, tuned to 29 Hz, 61.6 sq in of port, F3 25 Hz.
Around 29 Hz the port does most of the work and output climbs several decibels over the same driver sealed. Below 29 Hz the cone is no longer loaded, so set a subsonic filter a few hertz under it.
With 61.6 square inches of port, air speed stays low enough that the port should stay quiet at high volume.
Listed construction: polyfill installed.
Both drivers share one chamber, so use a matched pair wired to the same final impedance. Send us your subwoofer model and we will check it against this box before you order.
Questions about fit? Call or text (785) 430-0822.
Box specifications
| Type | Ported |
|---|---|
| Drivers | Dual, 12-inch |
| Net volume | 3.47 cu ft |
| Tuning | 29 Hz |
| Port area | 61.6 sq in |
| F3 (anechoic) | 25 Hz |
| Height | 20.25 in |
| Width | 40.5 in |
| Depth | 20.25 in |
| Baffle | Double, 1.5 in |
| Chambers | Shared |
| Made for | Stereo Integrity SQL-12 |

