Are amp or preamp as important as source in setup?


Just wondering and looking for answer.
In my system (Dynaudio S1.4, Rega Saturn and Cambridge A640V2), as you can see, my weakest link will be my amp in term of money value. I do plan to upgrade it to Bryston power with a marantz receiver. Does it make noticable different? I just wondering why ppl spend lots of money on power amp, can we really hear the different between an 500W to 125W amp? since I only listen music in a normal level.
Thanks.
audiorichard

Showing 1 response by audiorichard

hi all and thx for advise. Today, I just bought a used Bryston 5B-ST, any suggestion of a pre-amp or receiver? Since I am going to setup a HD 5.1 system in future, is it better to get a receiver instead of audio pre-amp. I am doing 50% music and 50% movie/TV. Any suggestion of pre-amp or receiver around $800?
THX!!!!