Recieved my amp and speakers yesterday.
LSi9s and Cambridge Audio 640A amp. Good sound so far. I hooked up the free sub but realized it was ruining the sound and disconnected it. An SVS is in my future.
The LSis are better than the RTis especially with music that is fast paced (drum solos sound great) Violins, electric guitars, and horns on the LSis sound closer to the Linaeums on the Optimus LX550s than the RTis.
Amp is plenty loud enough. Everybody was trying to sell me on getting a 150wpc amp.