System:
Primare D20 CDP
Primare I20 Int. Amp.
ProAc Studio 125 Floorstander
Siltech Paris I/C
QED Silver Anniversary bi-wire
Supra Lorad Powercords

Now, my set-up:

Speaker to
- front wall = 50" (1/5 of Length).
- side wall = 40" (1/4 of Width).
- Apart = 2 meters

Listening position
- 9' from plane & 8' from back wall (1/3 of Length)
- with a movable carpet between speakers & listening.

Sounding
Music sound lighter but with good sense of depth.
LF is tuneful. HF is smooth.
I found those cds that i hate to listen in the past are listenable now (especially the Denon HI-FI Strings) which sound a little etch in the past, now sounding lively and musical.

In fact, i found that the classical cds that i owned now sounding much more musical, less bright.

Question
1. Will it be better if I place some absorbing materials at the 2 1st relection points on the left & right side wall? What will I get? How big the area I need to cover?

2. Will it be better if I place some absorbing materials at the centre of front wall? What will I get? How big area I need to cover?

Thanks