The SP5700 is a 576 line pojector (the 7200 was a 720line projector). The 5700 will however down sample 720p and 1080i to 576 output.

Regarding the bass, Meridian Amplifiers (IME) are very neutral and it is possible that you just got acustomed to the presentation of your previous system. I would suggest that you just left the system alone for a couple of weeks, play some tunes, enjoy it, and then if you still fell that it is lacking, you can start addressing particular areas (I would look at speaker positioning first, as this is likely to have an impact and is free to do!)

Mr Perceptive