Any Line Magnetic LM34IA owners here?


I'm considering to try some KT77 and/or KT88 tubes, but I don't know which will suit LM34IA best. Anyone tried these type of tubes with LM34IA?
I don't own a Line Magnetic, but I can say that Gold Lion KT77s are GREAT tubes...My Dennis Had Firebottle amp can accommodate all sorts of power tubes and I've tried many...various KT88s, 7581a, KT120 and 150...and I'm back to the GL KT77s these days.
I prefer GL KT88's to their KT77's, at least in my Music Reference RM9 MK2 amp... but it's really horses for courses, as we all hear differently and system synergy is critical. 
@ ajhoma

For the time being I use EH 6ca7, but I prefer Svetlana -C- EL34 or even Tung-Sol EL34B (new Russian). Now I've also tried JJ KT88, but I've realised that Iike the midrange of the EL34 tube  so much that I will switch back to EL34. 
Have had my Line Magnetic for 3 weeks now.  Prior to purchase, I auditioned a primaluna  evo 400 and a Naim supernait 2 in my home .  I have to say, neither of them was a match for the LM.  I mainly stream music thru a cambridge  851N.  Speakers are new Tannoy Cheviot's.  I replaced stock tubes with a pair of Brimar CV4003's and NOS Tungsram ECC83.  Presently researching power tubes.  Considering Gold Lion ,Psvane and Shuguang.  Any recommendations?
I have a 211ia and I’ve settled on Gold Lion KT-77’s ,Amperex Bugle Boys in the 12-au-7 spot and Telefunkens in the 12-AX-7 spot
Just read that LM34IA takes a variety of tubes i think, 7581a. 

If anyone tried this combo pls post!