I recently celebrated my 17th birthday and HT has become a huge hobby of mines. I've recently put my first HT system together piece by piece and im very proud of it but my question is what is an amp for and will it contribute to my receiver and speakers. Will it give my receiver more noticeable power? Will my speakers sound significantly better ? Will it make a huge difference in my surround and stereo sound for the better ? And what do I look for in a starters amp for the applications listed above ? Please help