Ask Mark: How to Get Better Car Sound
https://www.youtube.com/watch?v=_xVi6uNk-uc
Ask Mark: Custom Fibreglass Sub boxes and Speaker Pods
Perfectly designed and manufactured All of our fibreglass products are constructed with minimal flat surfaces to maximise the structural integrity of the boxes. We use 650gsm fibreglass chopped matting. A minimum of 6 layers up to 10 in areas that require more strength. These products will fit perfectly with the trimmings of the vehicle.