Welcome! Need support, you got it. Or share your ideas and experiences.
Return to Planar Speaker Asylum
98.238.253.88
In Reply to: RE: MMGs vibrating posted by srwilsonmiami on May 26, 2016 at 17:16:09
Just to make sure... you are referring to your MMGs in the plural sense. So... both speakers are exhibiting what you call "vibrating"?
Follow Ups:
Yes, if both speakers are exhibiting the issue, then it's probably not a transducer failure or degradation. But, it could be. :)
Most likely the speakers are just being driven too hard and/or there's some low-frequency information in the program material they're just not capable of reproducing. The 1.6's have quite a bit more transducer area to create larger SPL's.
Dave.
They are both vibrating in the same manner. I switched sides anyway and the same. I think they just can't handle certain low frequencies, like the larger model. Do you think if I add a sub it would take some of the demand off the panel? I'm not ready to invest in a good sub but I have access to a Definitive Technology Prosub 100. It's a powered sub that takes speaker level connections so I would route the speaker cable from the amp to it first and then from the sub to the MMGs. It has adjustable crossover. Might that be a temporary fix?
sometimes it's hard to telll...
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius
That would definitely take the load off the MMGs but you will lose clarity because the sub's crossover has a midling quality speaker level crossover. You should get a quality external crossover at line level if that loss of resolution bothers you. If you want to DIY the MMG's line level high pass filter it is very simple and dirt cheap. Any number of us can help you with it.
I don't know if this is relevant to MMGs, but my T-IVs had a similar symptom when I first got them. There was a buzzing/vibration when playing loud, low tones, around 30 HZ or so.
I called Magnepan about it and a technician told me to use the handle-end of a screwdriver to push on the staples that secure the bass panels to the MDF and tighten them up. Problem solved. Does Magnepan still use this primitive way to secure bass panels to the MDF?
I think they still use staples! My Tympani IIIA made in 1975 had its drivers glued and revited - no rattling.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: