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trouble with new MG12s

Posted by jbs1 (A) on March 17, 2012 at 21:59:27

Hi, first time planar owner here. Just received new MG12s and one of them isn't working correctly, but before I possibly make a fool of myself going back to the dealer and slap myself when I hear the easy solution, I thought I'd be better off making a fool of myself here!

The problem is that I'm not getting vocals or other upper end instruments out of my left speaker (yes the tweeter ribbons are on the outside).

I have a Niles 275 amp puts 110/channel into 4 ohms and though I've tried a few setups what I have going now is JRiver 17 from my laptop to a Audioengine DAC to my amp. I also tried playing music through VLC and another player just to make sure it wasn't a setting in JRiver, with no luck.

I checked all the connections and when that didn't help I took the left speaker cables and switched them with the right and the right kept on playing fine while the left still sounded poor. I switched the MG12s out with a pair of bookshelf speakers which both sounded fine.

I switched out the fuse with one of the extras that shipped with the speaker and I tightened those tiny screws to make sure the banana plugs were securely in place.

I've done everything I can think of except I haven't messed with is the tweeter/attenuator and resistors that come with the speakers. Has anyone here had a similar problem or know what might be going on other than the possibility that I just got a bum speaker with a bad quasi ribbon tweeter?

thanks, J

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