Low power tube amp for Sonus Faber?


I'm thinking of buying an Italian tube integrated Mastersound 845 compact for my SF Elipsa SE. 
It uses 2 845 Valves, single ended at 30W per Channel. Would really like to try a valve amp on the Elipsa. Is this a mistake? Has anyone tried this? I've listened to Mastersound pf100 which are 120W mono blocks and I was blown away. Unfortunately the price difference is nearly ten fold. Has anyone tried using a low power valve amp with SF? 
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Showing 2 responses by mboldda1

specs on your speakers 91db SPL (2.83 V/1m) 4 ohm load
i am using the mastersound compact 845 on a pair of rosso fiorentino volterra speakers
with specs 87db spl (25.83v/1m)  6 ohm  3 ohm min.
my room is 12"x15"x8"  i get plenty of volume.
the mastersounds have great transformers.