The only thing thin about the CompRT® Subwoofer is the mounting depth. Whether it’s on the road, sand or trail, these tough subs work perfectly in nearly anything with a motor.

Your car’s back dash. The bags on your bike. Behind your ATV’s seats. Add the weatherproof CompRT Sub to your ride without sacrificing comfort or storage space.

Superior components make a huge difference. Dual voice coils, a unique heat management system and our signature red cone stitching all help to give you deep bass and outstanding reliability in our thinnest subwoofers.

This KICKER® sub is built to take the power and sound incredible. With recommended power ratings as high as 500 watts, it’s easy to get the bass you crave.

The CompRT 6-3/4-Inch Subwoofer is an all-weather thin sub with a pair of 1Ω voice coils.
A tough exterior is just the start of this slim mount subwoofer. With a mounting depth under three inches and plenty of power handling, this go-anywhere sub is as flexible as it is powerful.
The CompRT 6-3/4-Inch Subwoofer works best with a sealed enclosure and 150 watts of recommended power. See below for more details.
| Specifications | |
|---|---|
| Impedance | 1 ohms |
| Fs (Hz) | 55.6 |
| Sensitivity | 82.57 dB at 1 watt |
| Cone Material | Polypropylene |
| Surround Material | Rubber |
| Qts | 0.578 |
| Ideal Sealed Box Volume (cubic feet) | N/A |
| Port diameter (inches) | N/A |
| Peak Power Handling (Watts) | 300 |
| Free-Air | Yes |
| Cutout Diameter or Length (inches) | 5 1/2 |
| Ideal Ported Box Volume (cubic feet) | N/A |
| Size | 6 3/4 -inch |
| Port length (inches) | N/A |
| Dual Voice Coil | Yes |
| Frequency Response | 30 - 500 Hz |
| RMS Power Range (Watts) | 80-150 |
| Top Mount Depth (inches) | 2 3/4 |
| Bottom Mount Depth (inches) | N/A |
| Vas (liters) | 4.2881 |
| Xmax (millimeters) | 5.1 |