Mark Levinson 32 or Audio Research Reference 3

My next upgrade will be a preamp and I want a Reference. After doing some research I have narrowed it down to these two. Can somebody who had both shed some light in how they compare in sound? I have Levinson gear at home so I am excited about the 32 however I can't ignore the possibility that I might be losing out if I don't go with the Audio Research Ref 3. Need help, Thanks

My System:
Mark Levinson 23.5
Mark Levinson 27.5
Proceed AVP2
Dynaudio Confidence 5
Dynaudio 1.3SE
Meridian 508.24
DH Lab Air Matrix Cable
Monster M1 Cable