Recently I am seriously thinking to upgrade my system. I seem like having 2 options as following and would like to seek your professional advise in which to go.

My Existing Set-up:

Marantz CD 7300 Player
QED Q3 Interconnect
Primare I20 Int. Amp.
QED Plus Bi-Wired
ProAc Studio 125.

My Upgrade Options :

(1) Upgrade my Marantz CD 7300 to Primare CD 20 Series; OR
(2) Add Richard Gray Power Co. 400 into my existing set-up.

I would like to know the sonic improvement i will get from each of the above upgrade and also your personal opinion which is the best i shold go for.


Your advise urgently needed.