Audio Research ARC Ref 5 versions?


Hi,
Would anyone know if, apart of the obvious SE version, there were differences between earlier units of the Ref 5 and more recent ones?
If so, when was the "cut" between earlier and recent?
Thanks.
amuseb
My understanding is that the reason for the REF5-SE is that ARC realized that the LS27 was so close to the performance level of the REF5, they were prompted to introduce the SE version. It makes really want to trade up my LS26, as soon as I can build up the funds.
Theo,

The Ref 5SE is much better than the LS27. I replaced the LS with the Ref. I can tell you that the difference is not subtle. BTW, I was a very happy owner of the LS.

Mike
Good to hear, Mike. I was sure hoping so.
Now with the LS 27 and newer ref5 se, ARC preamps are again at the top of the heap.
Have fun!
Does anyone know if Ref 5 will be upgradeable to SE and if so, at what cost?

Neal