i have a rotel rsx-1065 for the last 8 years i had [email protected]w speakers hooked up to it but the last month or so the fronts sounded really low. it seem like the rears are fine. i did the test tones and i got sound out of the fronts doing the test tones. so i bought axiom speakers for the fronts but the still sound low. i also hook up a 5 channel amp and still sound low could it be the rotel has 3 bad channels i mean it is 8 years old