it will give higher output; not needed, imo, unless you have inefficient speakers and want to play extremely high spl's in a large space.
if you want a better p/s, i'd recommend this; if you click on the link, the seller will send you an offer w/a bit of a discount. (he offered me $48.) i thought about buying a pair for the aiyima a07 max amps, but decided that since my speakers are >95db efficient, that it wouldn't make much difference if any, so i ordered them w/the 48v/5a power supplies.
https://www.ebay.com/itm/145114710034
doug s.