Hi there
Trying to get the service manual for 15year old MS Avant 902i ported bookshetlf speakers.
An attempt at servicing, - recap and replace ferrofluid.
The six hex nuts on the rear terminal plate let the plate come off but the crossover can't be accessed as it won't angle out.
Front access: aluminium or alloy front panel, four screws with the speaker grille inserts, these unscrew with allen key, but no pressure released on the front plate.
Very thing Stanley-knife type blade run down into the gap between the plate and the cabinet, all four sides, no result. Still tight. Was some resistance, probably glue being released.
Viewing through the bass port at the rear, there's screw rears visible on the large drivre circumference - clearly showing the speakers are attached to an MDF board with the front silver panel on top. Just, how to get it off!
Manual or ideas welcomed. I'd like to refurbish these as I'm pretty sure after confirming the tweeters are fluid-damped, that it's dried up.
I've done this to some very old Kef bookshelf speakers and they cleaned up and started to sparkle again, so this has probably happened to the 902's also.
If I can get in...
CHeers for any thoughts or help proffered.
GB
Trying to get the service manual for 15year old MS Avant 902i ported bookshetlf speakers.
An attempt at servicing, - recap and replace ferrofluid.
The six hex nuts on the rear terminal plate let the plate come off but the crossover can't be accessed as it won't angle out.
Front access: aluminium or alloy front panel, four screws with the speaker grille inserts, these unscrew with allen key, but no pressure released on the front plate.
Very thing Stanley-knife type blade run down into the gap between the plate and the cabinet, all four sides, no result. Still tight. Was some resistance, probably glue being released.
Viewing through the bass port at the rear, there's screw rears visible on the large drivre circumference - clearly showing the speakers are attached to an MDF board with the front silver panel on top. Just, how to get it off!
Manual or ideas welcomed. I'd like to refurbish these as I'm pretty sure after confirming the tweeters are fluid-damped, that it's dried up.
I've done this to some very old Kef bookshelf speakers and they cleaned up and started to sparkle again, so this has probably happened to the 902's also.
If I can get in...
CHeers for any thoughts or help proffered.
GB
I have never done this and have no knowledge of dismantling the speaker you own. I did take the time to look at an image for them and maybe you could posit an image for others to view.
On the image I looked at it seems the whole baffle has a cosmetic plastic front face, hmm.
It does look as if the tweeter piece may come out with some gentle persuasion, but there is always the risk of cracking the plastic.
You are sure you can not see any screws or bolts holding the panel when you view via the crossover hatch?
One final thought, where the rubber bungs are to retain the grille will they ease out and reveal screws ?
On the image I looked at it seems the whole baffle has a cosmetic plastic front face, hmm.
It does look as if the tweeter piece may come out with some gentle persuasion, but there is always the risk of cracking the plastic.
You are sure you can not see any screws or bolts holding the panel when you view via the crossover hatch?
One final thought, where the rubber bungs are to retain the grille will they ease out and reveal screws ?
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This larger view suggests the plastic front is (also?) held on by adhesive strips.
Attachments
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Found this explanation of how to remove the alloy (not plastic!) front: Tekforums - Replacing Woofer/Tweeter on Mordaunt Short Avant 902 Speakers