First - This is an old, but interesting read/review on DACs. Please read it through to the end.
https://www.stereophile.com/content/borderpatrol-digital-analogue-converter-se
Two considerations for rocking:
Get a second set of speakers that are more suited to rocking (someone mentioned JBLs) to swap with your MLs when you have the itch. (I have Maggies and ProAcs to swap).
and/or
Get a serious sub or 2 (I have a Rythmic 15 in sealed sub) and high pass the amp to your mains at say 50Hz.