Suggestion on driver BJTs for output stage.

Howdy,

Just wanted some suggestions on good driver transistors for this output stage? I decided to move the 2SC4793/2SA1837 into the VAS stage to run more current through it, that and the 2SC4793 seemed to be the better VAS BJT instead of the 2SC2911 for a 300+ watt sub amp. I was considering the C5200/A1943 but couldn't find stock where I am.

The transistors in question are Q14 and Q15.

EDIT: Thoughts on 2SC5171/2SA1930 as drivers?
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