Well since you asked, here are a few random thoughts.
First of all, run the Ninkas passively biamped with your 2250 and LK 280, just to hear what it sounds like to passively biamp. After you've played with this for a while, sell the LK 1 and LK 280/Spark to free up some funds.
Now the upgrade fun begins, as budget permits
I don't know if you are planning to be strictly two channel, or whether you are interested in eventually putting together a 5.1 home theatre for mixed move/music use. Since you have the AV 5103, and since your original post mentions your TV, I have been wondering if a home theatre is ultimately in your plans.
Here are two possibilities.
If you only want a two channel stereo, then add a second 2250 and Aktiv cards. Alternatively, sell your current 2250 (along with the LK 1 and LK 280/Spark) and buy an AV 5125 with Aktiv cards.
On the other hand, if you eventually want to expand into home theatre, here's one (of many) possible intriguing upgrade possibilites.
Sell the LK 1 and LK 280/Spark. Keep the 2250. Buy an AV 5125, and Ninka Aktiv cards. You now have seven channels of amplification. Put the Ninka Aktiv cards in the AV 5125, utilizing four channels. Use the fifth channel in the AV 5125 to power a center channel speaker (eg. a Trikan). Use the 2250 to power two surrounds (eg. Katans, Tukans or Kans). Now you have a 5.1 home theatre with Aktiv left and right front speakers. If you just want music, you use the Aktiv Ninkas. If you want 5.1 movies, you've got that covered too.
First of all, run the Ninkas passively biamped with your 2250 and LK 280, just to hear what it sounds like to passively biamp. After you've played with this for a while, sell the LK 1 and LK 280/Spark to free up some funds.
Now the upgrade fun begins, as budget permits
I don't know if you are planning to be strictly two channel, or whether you are interested in eventually putting together a 5.1 home theatre for mixed move/music use. Since you have the AV 5103, and since your original post mentions your TV, I have been wondering if a home theatre is ultimately in your plans.
Here are two possibilities.
If you only want a two channel stereo, then add a second 2250 and Aktiv cards. Alternatively, sell your current 2250 (along with the LK 1 and LK 280/Spark) and buy an AV 5125 with Aktiv cards.
On the other hand, if you eventually want to expand into home theatre, here's one (of many) possible intriguing upgrade possibilites.
Sell the LK 1 and LK 280/Spark. Keep the 2250. Buy an AV 5125, and Ninka Aktiv cards. You now have seven channels of amplification. Put the Ninka Aktiv cards in the AV 5125, utilizing four channels. Use the fifth channel in the AV 5125 to power a center channel speaker (eg. a Trikan). Use the 2250 to power two surrounds (eg. Katans, Tukans or Kans). Now you have a 5.1 home theatre with Aktiv left and right front speakers. If you just want music, you use the Aktiv Ninkas. If you want 5.1 movies, you've got that covered too.