Just connect it as described and enjoy.
Yes, there are better phono stages, but I assume your Rega/Rega will sound very nice.
Aside from that you have a complete backup amp (with phono) for the PL.
I used the phono section (only) of an Advent 300 receiver for years (patched through various tube gear) and was rewarded with super results through the 70’s/80’s.
If the Brio is new give it some time to bloom sound wise (same for the TT/cartridge if new as well).
Only talking about 25-50 hours of use, before sonic changes become apparent.
Yes, there are better phono stages, but I assume your Rega/Rega will sound very nice.
Aside from that you have a complete backup amp (with phono) for the PL.
I used the phono section (only) of an Advent 300 receiver for years (patched through various tube gear) and was rewarded with super results through the 70’s/80’s.
If the Brio is new give it some time to bloom sound wise (same for the TT/cartridge if new as well).
Only talking about 25-50 hours of use, before sonic changes become apparent.