Krank rev1 output transformer recommendation

[covil]

I wan´t to replace the output transformer of my krank rev1. It´s been modded a bit ,and it´s now running el34, but it´s always a little fizzy and lacking solid low end. It´s a high plate voltage amp 560v.
Can you recommend a output transformer?

[Haze13]

I like ClassicTone transformers, because I have a JCM800 build with it. I have "musical power supplies" which I like, but they for a low power amps.
560v for a 100 watt? well... 2 X KT120 can give 100w with these voltages and 4.5k iron, with 60mA per tube. 300 on the screens. Each tube rated for 60 watts at max, so they will longer than a pair of NOS kt88 under the same conditions, new KT88 will die even faster.

OR: Take a look at the 100 watt marshalls with el34. All the information that you need is on this site.