Flash Sale

CT1X8 // Single 8” Kerf Port Universal Car Subwoofer Box

Base Price: $89.99 Sale Price: $70.19

You Save 22% ($19.80)


The CT Sounds CT1X8 is a single 8-inch empty car subwoofer box engineered for maximum bass response and low-frequency reproduction. The kerf-style port, universal fit, poly-filled lined internal walls, and 7.37” cutout diameter make this pre-fabricated 8” subwoofer enclosure compatible with a wide variety of subwoofer brands on the market. Its kerf-style port, typically only seen in custom enclosures, will “unhide” the missing bass in your system and have your subwoofer playing deeper and more accurately.

The CT1X8 subwoofer box was constructed using some of the most advanced joinery practices - dado joints connect the exterior left/right wood pieces to the exterior back/top/bottom wood pieces by a groove, and miter joints connect the corners of the box by cutting the wood at a 45-degree angle. These joinery practices ensure maximum surface contact and eliminate any concern for vibration. Additionally, the recessed side panels further enhance the air-tight, vibration-free construction design.

To finish the equation, the subwoofer box is wrapped in a premium-grade black carpet with a flush-mounted black terminal cup. The terminal cup features 8-gauge push-terminals labeled with red & black stickers identifying positive and negative connections. Internally, the subwoofer box comes with 12-gauge speaker wires that are pre-soldered to the terminal cup creating a true plug-n-play product offering.

General Specifications:
Subwoofer Box Size: Single 8"
Subwoofer Box Type: Empty Subwoofer Box
Subwoofer Box Style: Kerf Port
Wood Thickness: 3/4"
Wood Material: MDF
Cut-out Diameter: 7.37"
Mounting Depth: 10.95"
Subwoofer Box Specifications:
Gross Volume: 1.06 ft3
Tuning Frequency: 39 Hz
Port Length: 24.15"
Port Width: 1.26"
Kerf Fold Length: 3.93"
Kerf Fold Width: 2.50"
External Dimensions:
Length: 18.00"
Height: 11.00"
Depth (Bottom): 15.44"
Depth (Top): 13.50"
Fit Guide:
TROPO-8: ✔️
MESO-8: ✔️

*When pairing these subwoofer boxes with CT Sounds Subwoofers, you can expect loud on the lows, for the low!

Customer Reviews

Based on 1 review
Esteban G.
Good box for the price

It’s a really good box idk about the polyfil that came in it but it’s sounds great paired with the Meso 8”. No complaints here