Coated vs uncoated Scanspeak 15W8530?

fishball79 · 11th February 2005, 04:13 AM

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

alan-1-b · 16th September 2006, 01:58 PM

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 .

fishball79 · 17th September 2006, 03:43 AM

Thanks for that Alan!

john beresford · 17th September 2006, 12:37 PM

Have a look at John Krutke's website - Zaphaudio - for a comparison in the 5.5" shootout

augerpro · 18th September 2006, 03:31 AM

What model number shows if they are coated? Madisound's descriptions aren't really clear on the matter...

Mingo · 18th September 2006, 04:10 AM

15W8530 coated
15W8531 uncoated

alan-1-b · 19th September 2006, 02:02 PM

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 ,

bambadoo · 19th September 2006, 02:04 PM

The 18w8531g00's that I have are uncoated (6 pcs. - 4 in my Xavian XN360's - and 2 spare drivers.)

rabbitz · 19th September 2006, 02:25 PM

18W8531G00 here is uncoated.

I thought the ones with "K" instead of the "G" were coated.

alan-1-b · 19th September 2006, 02:49 PM

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 ,

11th February 2005, 04:13 AM	#1
fishball79 diyAudio Member Join Date: Sep 2001 Location: Sunny Isle Singapura	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 __________________ C h r i s

16th September 2006, 01:58 PM	#2
alan-1-b diyAudio Member Join Date: Apr 2006 Location: Midlands	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 . __________________ Alan

17th September 2006, 03:43 AM	#3
fishball79 diyAudio Member Join Date: Sep 2001 Location: Sunny Isle Singapura	Thanks for that Alan! __________________ C h r i s

19th September 2006, 02:02 PM	#7
alan-1-b diyAudio Member Join Date: Apr 2006 Location: Midlands	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 , __________________ Alan

19th September 2006, 02:25 PM	#9
rabbitz diyAudio Member Join Date: Jul 2003 Location: Newcastle	18W8531G00 here is uncoated. I thought the ones with "K" instead of the "G" were coated. __________________ Terminated


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17th September 2006, 12:37 PM	#4
john beresford diyAudio Member Join Date: May 2006	Have a look at John Krutke's website - Zaphaudio - for a comparison in the 5.5" shootout

18th September 2006, 03:31 AM	#5
augerpro diyAudio Member Join Date: Aug 2006	What model number shows if they are coated? Madisound's descriptions aren't really clear on the matter...

18th September 2006, 04:10 AM	#6
Mingo diyAudio Member Join Date: Dec 2005 Location: Jutland	15W8530 coated 15W8531 uncoated

19th September 2006, 02:04 PM	#8
bambadoo diyAudio Member Join Date: Feb 2003 Location: West Coast of Norway	The 18w8531g00's that I have are uncoated (6 pcs. - 4 in my Xavian XN360's - and 2 spare drivers.)

19th September 2006, 02:49 PM	#10
alan-1-b diyAudio Member Join Date: Apr 2006 Location: Midlands	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 , __________________ Alan

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