Bakoon amps would be worthy of considering as an alternative.Both designers are producing really special sounding and highly evolved amplifiers.I own a Bakoon Satri 5521 which is a wonderful sounding thing.
Here is an interesting review which compares a 15 watt Bakoon with the SIT1 and praises both.http://www.6moons.com/audioreviews/bakoon/2.html
Here is an interesting review which compares a 15 watt Bakoon with the SIT1 and praises both.http://www.6moons.com/audioreviews/bakoon/2.html