I'm thinking of getting into tubes, what do you

Agree w/Tpsonic, but generally accepted wisdom is that ss power amp w/tube preamp is better way to go than the opposite. However, many all tube combos will sound best.
The key is the amp/speaker combination. No advice on amps is useful, unless it considers what speaker will be used.

Spencer

I had a SP9-III, later a BAT vk5i, which was much better. Now using a Joule Electra LA-150, like that best of all. I think the more recent ARC preamps outperform the 9. They change models so frequently, that I have a tough time keeping them all straight.

A good friend uses a vk3i with his Mag 3.5s, BAT vk-500 ss amp, nice combo, too. Either the BAT or later ARCs would be good matches for you, IMHO.
Spencer

Get a separate phono stage. Most internal ones aren't competitive for the money.

Spencer

Think yes, but they changed the model number to, pehaps vk30. Call BAT to know for sure.
It's been a while but I think it does have tape loop & 2 aux.

Spencer

Gfloyd53,
Just got caught up on this thread. Sorry to have left you hanging. I think the break-in was the key to your initial issues.
From your comment about jumpers, it sounds like the speakers are bi-wirable. I'd post a question in speaker forum or search archives re: B&W biwiring. On some speakers it makes tons of difference. You might be able to borrow someone else's biwires and give it a try. B&W dealers would also have recommendations.
Lastly, BAT gear is made balanced and strongly prefers balanced XLR interconnects. Hope you are using them. If not, you aren't hearing all that you paid for. Even lower priced balanced cables can outperform some higher-priced singe-ended cables with their gear.
Keep us updated, you're well on your way. Cheers, Spencer