i currently use an XPA-5 to power my M80v3, VP180v3 & pair of QS8v3's and I have no problems at all with any of them. the amp has only ever gotten warm, never hot with them, never. congrats on your 180 & best of luck with whatever amp you choose.

please keep us posted.

SonySXRD55"
Marantz AV7702MKII pre-amp
Emotiva XPA-5,UPA-2amps,
14 Speakers, All Axiom
Oppo 105D&93