Coated vs uncoated Scanspeak 15W8530? - diyAudio
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Old 11th February 2005, 03:13 AM   #1
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Default Coated vs uncoated Scanspeak 15W8530?

Hi all,

I have a pair of older 15W8530K00 woofers which are coated. I believe the newer ones come uncoated.

Would anyone know the difference this will make? Would they simply sound slightly different or have vastly difference specs?

Cheers,
Chris
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Old 16th September 2006, 12:58 PM   #2
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The coated cone option seems to reduce the amplitude of cone break-up in the midrange and the associated resonant behavior .
I asked about the sliced cone Scan-speak drivers several months ago in this forum and received several helpful reply posts .
regards , Alan .
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Old 17th September 2006, 02:43 AM   #3
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Thanks for that Alan!
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Old 17th September 2006, 11:37 AM   #4
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Have a look at John Krutke's website - Zaphaudio - for a comparison in the 5.5" shootout
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Old 18th September 2006, 02:31 AM   #5
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What model number shows if they are coated? Madisound's descriptions aren't really clear on the matter...
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Old 18th September 2006, 03:10 AM   #6
Mingo is offline Mingo  Denmark
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15W8530 coated
15W8531 uncoated
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Old 19th September 2006, 01:02 PM   #7
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Default and 18W8531G ?

I've had a look at ZaphAudio and see the differences in the various plots for the coated and uncoated versions of the 15W models .
I see John K. now also has the Scan 18W8531G tested , though he does not state whether coated or uncoated cone .
From his test results' plots I'll hazard a guess it is coated , but on Tymphany's ScanSpeak data page the photo shows uncoated for this model , and no mention of coating in their text for this model nor any of the 15W sliced cone models. And to add to the ambiguity , the ScanSpeak photos show coated for both the 15W8530 models and both the 15W8531 models .

Has anyone seen a current or recent production sample of the 18W8531G00 , and can please reply here if it has a coated or uncoated cone ?
Thankyou ,
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Old 19th September 2006, 01:04 PM   #8
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The 18w8531g00's that I have are uncoated (6 pcs. - 4 in my Xavian XN360's - and 2 spare drivers.)
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Old 19th September 2006, 01:25 PM   #9
rabbitz is offline rabbitz  Australia
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18W8531G00 here is uncoated.

I thought the ones with "K" instead of the "G" were coated.
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Old 19th September 2006, 01:49 PM   #10
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Thanks for your replies fellows - much appreciated !

Rabbitz , have you had any success with an 18W8531G00 with a first order cross-over slope ? , and if so was its nominal crossover frequency above or below 2kHz ?
Thankyou ,
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