FOUR Connect 4-AI8 SLOT empty subwoofer enclosure for 8″ subwoofer, slot-ported 19.1 L
The FOUR Connect 4-AI8 SLOT is a compact ported enclosure for an 8″ subwoofer. The large port has rounded edges, the cabinet is made of MDF board and the upholstery is black carpet – a neat, space-saving way to add real bass to a small trunk or behind-the-seat installation.
Key Features
- Slot-Ported Design: 19.1 L net volume tuned to 60 Hz for punchy 8″ bass
- Rounded Port Edges: Large port with rounded edges reduces port noise
- Solid Construction: 19 mm MDF with a 25 mm plywood front baffle
- Finished Look: Black carpet upholstery
- Compact Footprint: Only 280 x 480 x 280 mm
- Empty Enclosure: Subwoofer driver is not included
Technical Specifications
- Model: 4-AI8 SLOT
- Designed for: 8″ subwoofer with a sheet metal frame
- Enclosure Type: Slot-ported (bass-reflex)
- Net Volume: 19.1 L
- Tuning Frequency: 60 Hz
- Speaker Cutout Diameter: 185 mm
- Material: 19 mm MDF + 25 mm plywood, black carpet
- External Dimensions (HxWxD): 280 x 480 x 280 mm
- Weight: 7.5 kg
Small box, proper port – the 4-AI8 SLOT is the easy way to get tuned bass from an 8″ subwoofer.
















