McIntosh MC2152 power amp technical question


My MC2152 suddenly acting up. When I use the XLR input the right channel makes popping sound when power off. To make the situation worst, the sound coming from this right channel is slightly lower compared to left channel which resulted in uneven sounds: left sound louder than right. IF I use the RCA interconnect the sound is fine and no speakers popping noise when powered off. I can settle by using the RCA interconnect and move on but i want to use the XLR input for better sound quality.  

Could it be the XLR right channel input connection defect? Or the electric board holding the XLR right input is defect?  Any technicians here in the community, your inputs would be greatly appreciated.  

thank you in advance for all your suggestions/help. 
kentrent

Showing 3 responses by mrdecibel

As stated above, if you swapped cables and the problem moved from the right to left, it is not the amps input, but a cable or the preamp / source...
Actually, most manufacturers products, new, come with the manufacturers warranty, to the 1st owner only. There are exceptions of course. The fact that they immediately told you to get the piece to them, shows me they wanted to take care of the issue, even though at a cost, which is reasonable to me. And honestly, this is a reason, some people will spend more, for a new unit, as opposed to used. Hope it works out.