Thanks for quick reply.Yeah, actually I had to return it for repairs after 3 weeks. The problem was similar to problems identified with the Ibanez Promethean, it took 15-90 seconds for it to power up after switching it on. They changed the power supply and it has been working fine since then. Thomann refunded the shipping cost and the support was excellent.
You wrote it could even compete with a fully cranked 300W tube head ?? That sounds promising and seems more volume than I need. I've got a 212 with two Eminence Deltalite II. As I also want to use it for my EUB I am rather looking for a natural sound with a lot of headroom. I guess I'll give the BA500H a try.