Quad 606 or Sony TA-N 55 ES?

[aquapiranha]

The amp will be used to power quite low sensitivity speakers that are 4 ohm. Anyone have any views on this? Thanks.

 

[eisenach]

Well, I've just bought a 606 (MkII) and I'm delighted with it. I don't know the Sony.
It's driving ESL63s, though, so I suppose you could expect it to sound good.