Replace my Berning ZH-270?

Hi,

I have a Joule LA150 MkII preamp and a Dave Berning ZH-270 running into a pair of Merlin VSM Mx speakers.

Could I poll some views on a theoretical question: if I were to keep my preamp, what power amps do you think I should consider to pair with my LA150? Or are there any members here who have done this move and if so what amps did you buy and why??

All the best,

MontyW