Troubleshooting
How to Fix a Subwoofer in Your Car: Diagnose and Repair Step by Step
Most dead subwoofers are really a fuse, a ground or an amplifier in protect mode. Here is how to test each part and fix what is actually broken.
The archive
Car audio reviews and buying guides
Everything we have published, newest first. Every product below was bought at retail, measured on the bench and installed in a car before a single word was written about it.
Troubleshooting
How to Stop Vibration From a Subwoofer in Your Car: 7 Proven Fixes
Most subwoofer rattles come from a handful of panels and parts. Here is how to find each one with a test tone and fix it for very little money.
How-To
How to Get Deep Bass From Car Subwoofer: 8 Steps That Work
Loud but not deep usually means the system is tuned, filtered or boosted too high. Here is how to set gain, filters and the box for real low bass.
How-To
How to Measure Sub Size: Diameter, Cutout, Depth and Box Volume
The size on the label is the frame, not the cone. Here is how to take the four measurements that decide whether a subwoofer fits your box and your car.
Subwoofers
How to Choose a Subwoofer for Your Car: 7 Steps That Decide the Sound
Space, power, voice coils and the box decide how a car subwoofer sounds. Here is the order to make those choices in, with real spec-sheet numbers.
Subwoofers
10, 12 or 15 Inch: Which Subwoofer Size Fits Your Car
Cone area is not the whole story. Excursion, enclosure volume and the space behind your seats decide this more than the number on the box.