Cockpit speaker size - Cranchi Zaffiro 34

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I forgot to measure the diameter today before leaving the boat...

Does anyone know what size (circular) speakers are fitted to the Cranchi Zaffiro 34? I imagine it's a standard size part on all Zaffiro's as they are Cranchi branded speakers.

Time for an upgrade....

 

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OK so maybe someone can help me out here....

I measured the diameter from screw to screw and it was 140mm, but all speakers online seem to measure 130mm (5.25") - Is this my size and did I measure wrong? I just don't know if the diameter is actually the diameter of the speaker itself, rather than the screw holes

Any advise much appreciated

 

[RobWales]

I would guess its cone size...i.e the hole cut out you need to make and not the dimension across the screw pcd diameter...!

 

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I would guess its cone size...i.e the hole cut out you need to make and not the dimension across the screw pcd diameter...!

I'm getting completely conflicting info online, argh! I'll just take a speaker out and bring it to a local shop in the morning... it's worth paying the premium for buying locally to be sure