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Martin Logan ESL Expression 13a amp removal, woofer not working

My 13a has front and rear firing 10 inch woofers and one of my rear woofers is not working. It seems intermittent.  I took it out and saw nothing but when i put it back in, it worked!  For a while.

The amp is on the bottom and seems pretty difficult to remove.

Any tips or tricks to removing the amp?  It didn't simply unscrew and pop out easily like I wanted and I certainly don't want to damage any further.

Thanks!

dtximages
dtximages OP
350 posts
 

Great thoughts. I was just wondering if this sounds like a common "oh yeah, that's always this fuse, replace and be happy."  

I'll swap the woofers in a bit and see what happens. 

dtximages OP
350 posts
 

Ok, I swapped the woofers, same thing.. Rear woofer is out and seems to be an amp problem.. Hmm, I'd much rather replace a woofer than take the amp out and send to ML.  

Of course, I would discover this on a holiday weekend and I'm sure Ron at ML will be slammed on Tuesday. 

droleg's avatar
droleg
134 posts
 

Easy to remove. Unscrew feet, use 1/2 inch hexwrench to remove where the feet were screwed into. Seperate(easiest if speaker laying on side), disconnect 2 connectors. Vwa lah.

dtximages OP
350 posts
 

Droleg.  Tried that but feels like it’s connected somewhere else up in there. So I don’t have to remove the side rails?

droleg's avatar
droleg
134 posts
 

No. Just the 4 thingys. Then it just jiggles out. Did it on mine several times, for different reason than yours , though.

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