upgrade from Sonic Frontiers Line 1 to 3 SE+ ?


I have a SF line 1 with all the Amperex PQ 7038 tubes and have been quite satisfied with it.
May I know if there's obvious improvement if I replace it with a line 3 SE+ ?

Thanks,
so_armonk
Contact PartsConnexion up in Canada. The name escapes me at the moment. But he used to own and run Sonic Frontiers. He still offer services and upgrades for SF gears. He should be able to provide you with an answer.

FrankC
I would say absolutely yes.The line 3 is concidered one of the best tubed preamps,and with the upgrades to SE+ it's even better.But one thing to take in to concideration ,you could have three line 1 for the price of line 3 se+.
Thanks for everyone's helpful suggestion.
Can I say upgrading from line 3 to SE+ also
has obvious sonic improvement?