Will increasing size of amp improve sound quality?

My system is a Rotel and includes:
pream RC1070
Amp RB1050
CD RCD 1072
Tuner RT 02
Speakers Klipsch bookshelf 75s

The system is in a den approx. 10x18. I wondered if I increased my power amp to, say, Rotel 1080 would I improve my sound quality overall?