Sound difference with Auricaps

is there really that much of a noticeable difference when replacing with Auricaps?
Yes. I've reworked several crossovers in different pairs of speakers and the Auricaps are very good. Pricey, so one must determine which speakers and electronics deserve them. The cheaper alternative I've then taken is simply Panasonic metallized polys which still produce significant improvements over cheap caps.
The degree of improvement depends on what you're replacing,
but they are definitely worth their asking price.
Does anyone know what size/value Auricap(s) are using in the modded bizzy bee Cayin TA-30?