Alright so for about 2 years now I have been using a Dayton dta-100 to power my Dayton Sub-80 subwoofer and Dayton B652 Bookshelves. The left channel doesn't always work now, it goes in and out on the amplifier. I am looking for suggestions on what good amplfiers would be. The highest I am willing to go price wise is probably around $100, just looking for something that will power my system and sound great.