Hello. So a couple days ago I was talking to a friend about my speakers (DA-B652) and he mentioned that I should contact Dayton Audio to get a replacement set because they put out a revisioned/improved(?) model out as of July 2.   I purchased my speakers February 28, 2013.    Does anyone...

I bought a Lepai 2020A+ amp a couple months ago. I have noticed that turning the bass up too high results in the amp shutting itself off then turning back on, almost like it's struggling for power. So my question is, do you think the amp is defective or the power source isn't great enough to...