The amps finally got a run-out on Friday night. It was a pub gig so no need for PA support. In addition to the amps, I have invested in Evidence Audio cabling throughout the rack and put a Mike Hill hum loop eliminator in so the two amps are permanently ready to go.
I used the Evidence Audio monorail cable with the solderless plugs. The speaker cables are also Evidence Audio. As I have two cabs I will take the rig to the rehearsal studio soon and do a side by side comparison of one wired with my previous cables and one with the EA Siren cable.
Anyway. The amps. I was really pleased with the result. Depth, clarity and warmth. Note the rack has a graphic eq in the path but it was in by-pass mode so no influence on the final result. The amp was everything I liked about the Bass 400 and more. An awesome piece of kit. Given that the power rating of the TT is double that of the 400, I am glad I didn't have to lift a rack containing 4 of those!!!!