hifonics titan txi1508d PSU drivers replacements

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This Hifonics was left behind from a costumer who got another amp from me and had no use for it.Model number is txi1508d .Unit appears to have bad psu fets dfp70n06 and all gate resistors were brownish .I did replaced the resistors already and have a sett of 6 Rfp70n06 amp uses 8.one of the driver transistor appears shorted so I'm replacing all 4 - 2 a1275 and 2 c3228 the problem is i don't have those .

whats the most available substitute for those
 
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