I'm going to call "[email protected]" on the clipping analysis. Power, Yes, but clipping?! I guess they have to make money too, right? SMHIf you send your sub back for warranty because it burned out, the manufacurer can tell from the burn pattern on the voicecoil whether it had too much power or clipping.
Speaker Failure Analysis
1. Black discolouration in the middle or all over the voice coil
This is the most common damage seen and indicates that a well centred coil was driven with too much audio power for too long. The resistance of the burnt coil is often half or less the nominal value due to internal shorting.
2. Black discolouration at one end of the voice coil.
This is also a common sight and indicates either the voice coil was not centred during manufacture OR that the damage was caused by DC current rather than audio frequency current. A large DC current will displace the voice coil to one or other extreme. A faulty amplifier is automatically suspected.