Help choosing integrated

Good for you jjue, it sounds like it's of the same family as Krell type power, with plenty of current.
Here is an Aussie review and test for you, I can't tell if it's bi-polar or mosfet output stage as they didn't do a 2ohm test on it.

http://i.nextmedia.com.au/avhub/australian-hifi_reviews_2013_2013-06_vitus_audio_ri-100_integrated_amplifier_review_lo_res.pdf

Cheers George

Thanks George! I'll look into the review. 

Guys thanks for being patient with me. I received the Vitus about 3 weeks ago but haven't bee able to listen to it enough until this week. There are already quite a bit of published reviews and forum threads that discussed the sound quality and characteristics of the RI-100. My impression is consistent with what the professional reviewers and forum threads said. First of all, this amp produces very well-balanced frequencies over all spectrum. Tube-like silk smooth high when I listened to the violins. Natural and life-like female Jazz vocals. The bass is deep and tight and that makes RI-100 stands out among its competitors. The amp paints a wide and deep sound stage and the instrument separation is excellent. Most importantly, it doesn't cause fatigue after long listening sessions. Like I said, this is the first week which I have a chance to spend enough time listening to the amp. Will do more listening in the next few weeks and keep you posted. In general, I'm very happy with this amp. 

@jjue That's great to hear sounds like you made a great choice! Enjoy yourself and happy listening!

@jond Thank you! Very happy indeed. Time to listen to more music :)