I owned the SA-102 for several years and thought it was a great amp... and like Samzx12, I also owned a BAT VK 200, but IME, the Plinius sounded much better to me than the BAT amp.
I don't know this to be certain, but have read that the SA-102 & the SA-103 are nearly identical on the inside, and that the differences are largely aesthetic. With that being said, if you want to move up in power, you may want to consider the SA-102 and save yourself a few bucks.
Personally, the specs on your speakers lead me to believe they are fairly efficient, so the boost in power moving to the SA-103 is probably going to have a marginal impact. If you want to try something different, you may want to consider a moderately powered tube amp (thinking 50 to 75WPC would do the job).
I don't know this to be certain, but have read that the SA-102 & the SA-103 are nearly identical on the inside, and that the differences are largely aesthetic. With that being said, if you want to move up in power, you may want to consider the SA-102 and save yourself a few bucks.
Personally, the specs on your speakers lead me to believe they are fairly efficient, so the boost in power moving to the SA-103 is probably going to have a marginal impact. If you want to try something different, you may want to consider a moderately powered tube amp (thinking 50 to 75WPC would do the job).