Could anyone provide some insight on these 2 amps.They are very small & low profile,cool running which is what i'm looking for and very modestly priced.I've read numerous posts about these type of amps including the nuforce which is not an option for me since i hear they interfere with fm reception.But honestly i still dont get it as far as how good they are.Any insights or opinions woud be helpful for a guy with a modest budget.Just for info i'm looking at these just in case my rotel rsx1056 doesnt match up well with the new speakers that i'm getting which are 4-8ohm and 90db.thanks