Will increasing size of amp improve sound quality?

Do you have a suggestion for upgrading the speakers?

Thanks to all of you who thus far responded to my question. I am so new at this that I am easily confused. I looked into the Sonus Fiber speakers. Which ones would you recommend? And, I wondered if they are priced by the pair or singly. Bartokfan mentioned moving on. Had you had a bad experience with the Rotel?

Vman: I will show my ignorance. What does it entail to upgrade a cross over network?

Mike: Thanks for the input. I sm "audio-illiterate". Where would I go to get this done? And, what should I expect from the speakers after the upgrade? And, how much would it cost? Jack

Sounds good. As I understand I would not hsve to send the speakers to you? And, how difficult is it to reinstsll the upgrade? I repeat, my electronic skills are nil. Jack