I can only speculate, but I suspect the EAR might be too laid back a match for the Koetsu.
I owned a Koetsu Rosewood Signature for a bit and preferred it with a battery operated solid state phono pre (Nighthawk) over a tubed Minimax (juggled the hell out of tubes trying to unlock the magic).
I owned a Koetsu Rosewood Signature for a bit and preferred it with a battery operated solid state phono pre (Nighthawk) over a tubed Minimax (juggled the hell out of tubes trying to unlock the magic).