BOSS Audio Systems BASS10K Powered Car Audio Subwoofer and Amplifier Wiring Kit Package - 1000 Watts Max Power, Under Seat, Low Profile, 8 Gauge Wiring Kit, For Truck Boxes and Enclosures Amplified Car Subwoofer - Low Profile, 10 Inch Subwoofer, 8 Gauge Amplifier Wiring Kit, Remote Subwoofer Control Break Your Subwoofer In. Much like the engine of a new automobile, a new subwoofer must go through a short but important process of “break-in” before it is run under harsh conditions. The “break-in” process will ensure the subwoofer is able to perform as it has been designed to. This process involves subjecting the subwoofer to no more than low-to-medium volume levels for a number of hours in the enclosure. 3-4 hours is generally sufficient for the subwoofer’s suspension to loosen enough to prevent the voice coil(s) from overheating and causing failure. The break-in period is also effective in extending subwoofer life. Over-driving the woofer before it has been properly broken-in will usually result in premature failure and poor performance.