Tried tubes and LOVED it, now what?

nasaman I forgot about what is involved in biasing that amp...Start rolling with the small signal tubes,they do not affect bias voltage...

@freediver I will have to look up to understand what does rolling tubes mean. I heard about it but I was outside the “circle” so i kinda block it out. 
I will put Air Tight ATM-1 on my wish list. Someone posted it on YouTube of it mating with black bookshelf B&W and they sound outstanding. On the other hand, May I ask how’s Jadis’s liability and repair cost? Thanks all

Second the idea of upgrading parts. MIT Multicap RTX are made of tin and styrene, a very neutral combination. Solen makes a good tin and teflon cap, if you are after a bit of brightness. So does Relcap. Nude Vishay resistors are also worth their weight in audio gold.

I have a modded Sansui 1000a with 7591 output tubes into altec model 19s and the system is quite special. It puts a smile on my face and is non-fatigueing. Best of all it’s got my 16yr old son and all his friends into tubes. I also have a cayin h80 hybrid running my upstairs system. You’ll have to spend quite a bit more money to upgrade. I would concentrate on new speakers first. Welcome to tubes and enjoy the journey!  

The A88T is an excellent amp, especially the MK1 version. I bet you'd have to spend many times that $1K to find something significantly better.