That's a good list you've got there... There are a few in this price range that are all stellar, and it'll just depend on your tastes (and speakers) as to which is best. The Audio Refinement is fantastic, but is slightly limited in its power output (50wpc, I think). If that's okay with your speakers, it's hard to beat. If you need more power, be on the lookout for the Audio Analogue Puccini SE. I believe it's 85 wpc, and shares similar sound qualities to the Audio Refinement Complete. For solid state integrateds, these two would top my list.
You might also consider some of the tube/hybrid designs out there. The Jolida 1501RC is terrific, as well as some of the other Jolida all tube integrateds (301, 302, etc.). The 1501 is a hybrid design with a tubed preamp section and a 100 wpc solid state amp section. Also in that price range are the Anthem integrateds. I had the Integrated 2 (hybrid design, 90 woc) for some time, and was very happy with it. Great bass, smooth mids and highs, plus tank-like build quality. The Integrated 1 is a pure tube design.
Again, which one of these works best for you will depend on your listening tastes and the demands of your other equipment. I like a warmer, more laid back sound, which explains my recommendations. But, since you've already taken a step into tubes with the Ah Tjeob unit, these units might work well for you too. Best of luck, and happy listening!
You might also consider some of the tube/hybrid designs out there. The Jolida 1501RC is terrific, as well as some of the other Jolida all tube integrateds (301, 302, etc.). The 1501 is a hybrid design with a tubed preamp section and a 100 wpc solid state amp section. Also in that price range are the Anthem integrateds. I had the Integrated 2 (hybrid design, 90 woc) for some time, and was very happy with it. Great bass, smooth mids and highs, plus tank-like build quality. The Integrated 1 is a pure tube design.
Again, which one of these works best for you will depend on your listening tastes and the demands of your other equipment. I like a warmer, more laid back sound, which explains my recommendations. But, since you've already taken a step into tubes with the Ah Tjeob unit, these units might work well for you too. Best of luck, and happy listening!