Re: Grundig 3028 3D
The bass driver reverted to rubbing the voice coil and was causing dreadful distortion. After a few more attempts I gave up and started trialling with a replacement from a few spare drivers including 8 inch car audio coaxial units. For the craic I cut out a plywood adaptor baffle and bolted it in onto the original baffle using the existing speaker mounting studs. A water damaged B&W speaker yielded a 6 inch mid-bass driver. This was mounted and sounds good with the original tweeter and midrange speakers in the cabinet ends. The little EL84 copes well driving this lot with no changes to the crossover setup.
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Dom
Less snakes...more ladders!
Last edited by sexton_mallard; 1st Nov 2020 at 7:22 pm.
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