Quad ESL-63 repair by Hey You
click on any pic to download a ~2MB huge a hi-rez photo
This image shows the four panels as they would have been in the speaker. I have slipped sheets of paper between the stator and the grid to show where the bond has failed.
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This image shows an early Quad panel alongside the later USA Monitor panels. The USA Monitor panel is actually less rigid (but acoustically more open) than the panel it supplanted.
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In this image, the front panel is bonded to the diaphragm.
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This image shows a rebuilt panel with reinforcing bolts installed around the perimeter.
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This image shows two reassembled panels receiving a 24 hour test prior to being returned to the client.
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