MA2275 Issue need some advice


Looking for some advice. McIntosh MA2275 integrated and the left channel sounds dirty, at higher volumes the bass sounds staticy and broken, almost like a blown speaker. Using B&W 805D's, swapping the speakers the problem is still there but on the other speaker so its coming from the amp and not the speaker. Do the tubes need replacing?
g5flier
Thanks everyone for the replies, will change the tubes around and see if I can isolate the problem. For the fuses, I'd think they would work or not work (blown). Is there something to look for in particular? This is my first tube source, but in general how do you know that the tubes need to be replaced? Thanks!
OK changed the tubes from right to left and still having an issue on the left channel. Does anyone know if the MA2275 shares any of the tubes?
One more check. Trace your cables on the left side including speaker and IC.

Not sure about sharing for the MA2275.
Lapierre, checked the cables and the interconnects, even removed them and connected with bare wire still having the problem. You said to check the fuse before, wouldn't the fuse either work or not work? Their is only one fuse so wouldn't that effect both channels? It's a slo-blo type fuse.