Musical fidelity M6SI problem.

I'm thinking of buying one and I read about someone having this problem. I would like to know if this is a common problem before I buy one. I would appreciate any info on this. 

Why would you even ask? If you own this equipment talk to the manufacturer.

If you're looking to spread disinformation, this is the right way.

You didn't read my post. I don't own the equipment yet. I'm wondering if this problem really exists, or is what I read posted on another forum disinformation. I want to purchase one and I hope what I read is false.