Muffled vocals from Totem Sky & Musical Fidelity M5si

[rab]

I have a pair of Totem Sky driven by Musical Fidelity M5si. Right from the get-go the sound has been muffled, particularly with vocals. I hear this with vinyl, CDs, and digital sources. I have tried more break-in, probably at least 60 hours at this point, but it does not seem to be improving. Is this a bum pair? Or maybe a bad amp pairing? I’ve tried different placements, but the issue is quite pronounced in any configuration. I bought the speakers and amp as a pair and so haven’t been able to try them independently of each other.

 

[12th Monkey]

Might be a dumb question, but are both tweeters actually working? If you put an ear right next to them (avoiding excessive volume, obvs.) you'll know. It doesn't seem to be something you'd expect from those speakers otherwise, and MF amps don't tend to be lacking in clarity.

 

[Al ears]

Might be a dumb question, but are both tweeters actually working? If you put an ear right next to them (avoiding excessive volume, obvs.) you'll know. It doesn't seem to be something you'd expect from those speakers otherwise, and MF amps don't tend to be lacking in clarity.

It is possible you have a duff pair of speakers but doubtful.
No reason this pairing should not sound great.
How have you got them wired up?
Did you buy them from a shop?