Amp comparison

Or you could try this one:

https://www.audiogon.com/listings/lis9d302-audio-research-reference-110-modified-tube

Thanks for the info,I did see that modded 110 on agon. I think I would go the extra cash for a 150 though.  Also ARC may not even work on a modded ARC unit should it require servicing.

IMO, the ARC 150SE is significantly better than the Ref 150.  I own the 150SE and previously the 150 unmodded.  

@bifwynne 
In what ways is it significantly better?

Thanks

@bigkidz 

Rolling the KT-150s in the Ref 150 made a noticeable difference.  Deeper and tighter base, smoother range.  But the SE mod took the amp to a different level.  Bass was tighter still, more open and transparent, better control over the speakers.  
But to be candid, I made the switch over to the SE version many years ago so it is hard to be very specific on details.  That said, if you have a chance to A/B the regular 150 with the SE version, the differences will be day and night noticeable.