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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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soundsrealaudio's avatar
soundsrealaudio
756 posts
 
I have set up a pair of 40 watt single ended tube amplifiers to a pair of the Sonus Faber speakers. The customer was thrilled. I think you will love it.
daveyf's avatar
daveyf
2,919 posts
 
I use a 45 watt/ch tube amp with my SFGH’s...a superb match. However, the answer to your question involves many variables. The size of your room, the particular tube amp you are going to go with...and it’s ability to drive lower impedance loads, the quality of the particular tube amps transformers, the type of music you play, the loudness that you like...and on and on. IME, Elipsa’s will typically respond well to an amp upstream with some good power...so 30watts/ch might not do it for you, but again...many unknowns and variables.Best answer is to borrow/demo the amp you are considering and see for yourself.
mboldda1's avatar
mboldda1
575 posts
 
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.
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