wharfdale super 10/RS/DD filter ideas needed

richard.C. · 28th July 2010, 05:33 AM

Just recently i was given these old vintage speakers. I was using them as an extension for my guitar set up, they sounded all right and measured well enough, but not great.
Well today i opened the cabinets up to reveal that they're the vintage wharfdale super 10/RS/DD speaker units. I did bit of a look around on the net, i didn't find too much. But does anyone know, or know of some filters and/or a super tweeter combination to run with these units.

any suggestions welcomed.

richard

consort_ee_um · 28th July 2010, 07:27 AM

I started my speaker building career with the brother of these the Super 8
Troels has a good page on those here:
default page

My blog:
Consort3′s Blog

richard.C. · 28th July 2010, 11:04 AM

Yes, i had seen this on Troel's site, very good article to read. He had them crossed with Vifa XT25 tweeter. He hasn't provided the crossover though sadly. I actually found a suggested notch filter to use on these 10/RS/DD units. I still wouldn't mind a 2-way suggestion to pop up.

richard.C. · 31st July 2010, 01:52 AM

Alright i came up with a suitable parrallel notch filter to use with these Super 10 loudspeakers. When i measured there was a noticable 10db peak centered at 2.5KHz. Anyway the filter should, did eliminate this peak. There was a noticable tonal balance, it sounded much better.

For future reference for those who seek some advice like i did.

Using a 27ohm resistor, 0.82mh coil, 5uF capacitor, wired parrallel to one another. I connected the notch filter to positive line before the loudspeaker, and the other end to the positive input signal.

Hope this helps others

Anyway now to build some birch ply cabinets for these to give to my grandfather.

planet10 · 31st July 2010, 02:09 AM

I got rid of a lot of ugly in my super8 by excising the metal dustcaps. Never did finish the project as they were so far apart i had to consider them 2 singles.

dave

richard.C. · 31st July 2010, 03:21 AM

the whizzer cap on mine were mylar, apparently less break up with the mylar caps. It should be fun, and when i'm finished i'm sure my grandfather will love them.

28th July 2010, 05:33 AM	#1
richard.C. diyAudio Member Join Date: Jan 2006 Location: Sydney	wharfdale super 10/RS/DD filter ideas needed Just recently i was given these old vintage speakers. I was using them as an extension for my guitar set up, they sounded all right and measured well enough, but not great. Well today i opened the cabinets up to reveal that they're the vintage wharfdale super 10/RS/DD speaker units. I did bit of a look around on the net, i didn't find too much. But does anyone know, or know of some filters and/or a super tweeter combination to run with these units. any suggestions welcomed. richard

31st July 2010, 02:09 AM	#5
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	I got rid of a lot of ugly in my super8 by excising the metal dustcaps. Never did finish the project as they were so far apart i had to consider them 2 singles. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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28th July 2010, 07:27 AM	#2
consort_ee_um diyAudio Member Join Date: May 2004 Location: Hertfordshire	I started my speaker building career with the brother of these the Super 8 Troels has a good page on those here: default page My blog: Consort3′s Blog

28th July 2010, 11:04 AM	#3
richard.C. diyAudio Member Join Date: Jan 2006 Location: Sydney	Yes, i had seen this on Troel's site, very good article to read. He had them crossed with Vifa XT25 tweeter. He hasn't provided the crossover though sadly. I actually found a suggested notch filter to use on these 10/RS/DD units. I still wouldn't mind a 2-way suggestion to pop up.

31st July 2010, 01:52 AM	#4
richard.C. diyAudio Member Join Date: Jan 2006 Location: Sydney	Alright i came up with a suitable parrallel notch filter to use with these Super 10 loudspeakers. When i measured there was a noticable 10db peak centered at 2.5KHz. Anyway the filter should, did eliminate this peak. There was a noticable tonal balance, it sounded much better. For future reference for those who seek some advice like i did. Using a 27ohm resistor, 0.82mh coil, 5uF capacitor, wired parrallel to one another. I connected the notch filter to positive line before the loudspeaker, and the other end to the positive input signal. Hope this helps others Anyway now to build some birch ply cabinets for these to give to my grandfather.

31st July 2010, 03:21 AM	#6
richard.C. diyAudio Member Join Date: Jan 2006 Location: Sydney	the whizzer cap on mine were mylar, apparently less break up with the mylar caps. It should be fun, and when i'm finished i'm sure my grandfather will love them.

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