Sim Audio Monn I-5 vs VTL IT-85

Hi There:
would appreciate input or experiences on how these two integrateds sonic signature would compare againts each other,i currently have the moon i-5 and really like it but would like to give tubes a try and the it-85 is the one i'm interested in(tried the tempest magnum and was not up to the task in my system)i'm looking for the same transparency,detailed and refine sound along w/the punchy bass of the i-5 but with the magic of tubes,here is my system.
SFT-1 TRANSPORT
RESOLUTION AUDIO QUANTUM DOUBLE DACS IN BALANCED CONFIGURATION
MOON I-5
PLATINUM AUDIO SOLOS(power hungry but the 70w p/c i-5 is able to handle fine)the it-85 is 80 w p/c but tubes
TAD POWER PURIFIER
YAMAMURA QUANTUM AND JPS P/C'S
OMEGA MIKRO IC'S
SYNERG RESEARC REF X-SERIES SPEAKER CABLES(BIWIRED)
thanks so much for any valuable input.
regards to all
AL