Blowing my subs

I was wondering if someone could help me with an issue I'm having.
I seem to get these large subs and small amps, but seem to blow them easy.
Like now I have two 2300w boss phantoms ported box and 600w ClassD Ditected amp. I just can't figure out why I keep blowing large subs.
Can someone please help me understand what I'm doing wrong.

Underdriving speakers can be just as if not more damaging than overdriving them

Thank u for the info will look into the proper equipment.

What freq is the box ported to ? The subs are unloaded below the port freq and will blow easily if you play a lot of music with low tones.

It is
Min Frequency Response 25 Hz
Max Frequency Response 2 kHz

That's the specs on the speaker itself, wanted to know what freq the port in the box is tuned to

Distortion and frequency will blow subs faster than anything

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