90 db SPL should be ok - but some music is extremely dynamic and you may not be seeing it on an SPL meter.
Bass heavy material (while not loud) can cause an amplifier to easily run out of juice and clip....the clipping heats up voice coils and of course the wee VC in the tweeter goes first.
If you like to play music really loud then you are probably exceeding what this speaker was designed to do. It is a particularly difficult low impedance load to drive - so you need to expect troubles if you really push your amp. An easier load would be more amenable to being driven hard. Some speaker drivers are also designed to hold up better to being abused.
Bass heavy material (while not loud) can cause an amplifier to easily run out of juice and clip....the clipping heats up voice coils and of course the wee VC in the tweeter goes first.
If you like to play music really loud then you are probably exceeding what this speaker was designed to do. It is a particularly difficult low impedance load to drive - so you need to expect troubles if you really push your amp. An easier load would be more amenable to being driven hard. Some speaker drivers are also designed to hold up better to being abused.