My goodness, without a doubt go with the Ref 600's. The U-1's will love the power. I think you should save the money and pick up a pair of the 600 MK II's. They are very obtainable on the used market at a substantial savings over new.
Which sounds best....ARC Ref 300 or Ref 600 Mk II
I have been looking for an Audio Research Ref 600 Mk II in Audiogon's classifieds. I'm now wondering if I should also be considering a Ref 300 (the original Mk I version, not the Mk II). Along with the extra 3 dB of power provided by the Ref 600 Mk II comes twice the output tubes to replace, more heat, weight, bulk, not to mention the added initial purchase cost. However, sound is more important to me and if the 600 Mk II is significantly better than the 300, then I would rather have the 600 Mk II. My problem is there is no way I will ever be able to effectively compare these two amplifiers for myself in any meaningful way before I buy one. I am hoping some of you out there have heard them both under controled conditions and will not only have an opinion as to which is best, but can also describe any significant differences, recognizing they are both fine amplifiers.
- ...
- 6 posts total
- 6 posts total