@golfnut2 "I will have anther go at swapping the input tubes, they solid though. Apparently the was ex display and never used, it certainly looked untouched out of the box. Just answer an earlier question, the Robsons sounded great through a PL Prologue Pre amp with Cyrus X Power amp. In hind sight, maybe I should have gone for that combo and it may have been a whole different story."
golfnut2, Ask Upscale to replace the input and output tubes, both. See what they say. Who knows what this demo was before you got it, could have been a return from someone else who did not like the sound. EL34s can sound great with the right efficiency speakers. Maybe not so much with lower efficiency veiled over speakers. And, you may not be an EL34 type of listener and closer to liking the sound of KT88+ output tube sound as many have already suggested. If they don't want to help you on tubes, just return it. I bet the right small signal/input tubes paired with good KT88 output tubes would be more to your liking. Best of luck.