Hello Adrian & everyone, I have the BRAWA BR94 60 year aniversary set it is very nice But I did buy 2 x TN's I could not resist When they first came out i had terrible trouble with the Sound versions I think they were ESU 3.5. BRAWA after a lot of toing and froing and at the price i paid for them then In the UK was nearly £500.00 each I did eventually Get a full refund. A couple of years later I bought 2 Tn's without sound and the BR94 set and retrofitted it with ESU V4.00 with a stay alive that is all it needed. I then found some Decent German Suppliers and paid a lot less for them, Now they run very well on Fleischmann track. Babs