JBL 2408H-2 specs/upgrade

[iampoor]

Howdy

I have a fellow who has brought me 4x PRX815w speakers. I had preciously replaced each of the JBL2408H-2 drivers with a fresh set of genuine 2408H-2 from JBL, and guess what, all of them are blown again.

I suggested possibly replacing them with some HF drivers from eminence or another reputable brand. Is there a spec sheet for the 2408H-2 available? JBL's description of the PRX815w's having a HF amp that outputs 750w to such a puny driver makes me think they may have exaggerated some numbers a tad.....

[doctor]

2408H-2 (JBL P/N 5020337X)
Neodymium compression driver
Diameter: 37.5mm (1.5")
D.C. Resistance: 4.8 Ω
Crossover Frequency: 1.8KHz
Used in: PRX-712/715/725/735, PRX-812W/815W/825W/835W

First of all you need to check if you HF amp is intact.