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New (very old) cab day! Sunn ((o))))

Jul 30, 2018
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Hey gang! I just got home from picking up a monster! I grabbed this Sunn 18 inch cab for literally free. Still has the original cover with it too, bonus! The speaker is pretty well shot, it makes sound but anything below about a C farts out pretty bad and it’s easy to see why. The cone is essentially rotted away. Rest of the cabinet is in great shape. I think this is an early seventies model, maybe a coliseum? It has the speaker mounted from the inside not onto the front baffle. I am excited to replace the speaker and see what this mammoth can do, until then, I’ll clean it up and admire it’s coolness. Any speaker suggestions for a replacement?
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Anyone have any tips on reconing? I’d definitely rather do that than buy a new speaker that might not be suited for the cabinet. I can likely do it myself, but I would need to know what to buy, etc.. any help is greatly appreciated!
 
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Anyone have any tips on reconing? I’d definitely rather do that than buy a new speaker that might not be suited for the cabinet. I can likely do it myself, but I would need to know what to buy, etc.. any help is greatly appreciated!

Find a reconing service that knows exactly what you have and can get the correct replacement parts to do it properly. Reconing is difficult.
 
Hey gang! I just got home from picking up a monster! I grabbed this Sunn 18 inch cab for literally free. Still has the original cover with it too, bonus! The speaker is pretty well shot, it makes sound but anything below about a C farts out pretty bad and it’s easy to see why. The cone is essentially rotted away. Rest of the cabinet is in great shape. I think this is an early seventies model, maybe a coliseum? It has the speaker mounted from the inside not onto the front baffle. I am excited to replace the speaker and see what this mammoth can do, until then, I’ll clean it up and admire it’s coolness. Any speaker suggestions for a replacement?
View attachment 4424789
View attachment 4424790 View attachment 4424791

Congrats on acquiring the greatest amp that was made. SUNN! ((o))))
 
Hey gang! I just got home from picking up a monster! I grabbed this Sunn 18 inch cab for literally free. Still has the original cover with it too, bonus! The speaker is pretty well shot, it makes sound but anything below about a C farts out pretty bad and it’s easy to see why. The cone is essentially rotted away. Rest of the cabinet is in great shape. I think this is an early seventies model, maybe a coliseum? It has the speaker mounted from the inside not onto the front baffle. I am excited to replace the speaker and see what this mammoth can do, until then, I’ll clean it up and admire it’s coolness. Any speaker suggestions for a replacement?
View attachment 4424789
View attachment 4424790 View attachment 4424791

if you can find a re-cone specialist that has a kit for this particular speaker, you wouldn’t have to go through all the mathematic calculations to prevent potential speaker failure or cab inefficiency. It will probably be less expensive than buying a new speaker.
 
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