
November 26th 03, 06:01 PM
posted to uk.rec.audio
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Wharfedale Super 8
Hello all, I have a pair of loudspeakers in walnut cabinets.
I couldn't find the tweeter by feeling around the front - the grills don't
come off.
I opened them to find wharfedale super 8 / RS / DD drivers inside. A friend
has told me that they are 1970's with tweeters "built in" to the woofer!
Can anybody shed anymore light on these speakers?
I don't think they can handle much power as they distort quite easily :-(
Thanks
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November 26th 03, 07:51 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
"Chris Morriss" wrote in message
...
In message , Oddjob
writes
Hello all, I have a pair of loudspeakers in walnut cabinets.
I couldn't find the tweeter by feeling around the front - the grills
don't
come off.
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend
has told me that they are 1970's with tweeters "built in" to the woofer!
Can anybody shed anymore light on these speakers?
I don't think they can handle much power as they distort quite easily :-(
Thanks
They are nice high-quality drive units from the 60s and early 70s. They
are twin cone units. They roll off at 12kHz or so, so a high-efficiency
tweeter might be useful.
You'll find quite a lot of info on the web about them.
--
Chris Morriss
Actually known as the Wharfedale Super 8 RSDD - for roll surround doped (or
was it double) diaphragm.
--
Woody
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November 26th 03, 07:51 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
"Chris Morriss" wrote in message
...
In message , Oddjob
writes
Hello all, I have a pair of loudspeakers in walnut cabinets.
I couldn't find the tweeter by feeling around the front - the grills
don't
come off.
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend
has told me that they are 1970's with tweeters "built in" to the woofer!
Can anybody shed anymore light on these speakers?
I don't think they can handle much power as they distort quite easily :-(
Thanks
They are nice high-quality drive units from the 60s and early 70s. They
are twin cone units. They roll off at 12kHz or so, so a high-efficiency
tweeter might be useful.
You'll find quite a lot of info on the web about them.
--
Chris Morriss
Actually known as the Wharfedale Super 8 RSDD - for roll surround doped (or
was it double) diaphragm.
--
Woody
|

November 26th 03, 08:52 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
In article ,
Oddjob wrote:
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend has told me that they are 1970's with tweeters "built in" to the
woofer!
It's a so called wide range unit. But the standards required of HF
response in those days were rather different - I'd expect it to be perhaps
10dB down at 10kHz - and only that good directly on axis.
Home brewed designs for this sort of speaker would often include a
special amp with a tailored response to help hide the deficiencies, as it
were.
--
*Be nice to your kids. They'll choose your nursing home.
Dave Plowman London SW 12
RIP Acorn
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November 26th 03, 08:52 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
In article ,
Oddjob wrote:
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend has told me that they are 1970's with tweeters "built in" to the
woofer!
It's a so called wide range unit. But the standards required of HF
response in those days were rather different - I'd expect it to be perhaps
10dB down at 10kHz - and only that good directly on axis.
Home brewed designs for this sort of speaker would often include a
special amp with a tailored response to help hide the deficiencies, as it
were.
--
*Be nice to your kids. They'll choose your nursing home.
Dave Plowman London SW 12
RIP Acorn
|

November 26th 03, 09:57 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
Dave Plowman wrote:
In article ,
Oddjob wrote:
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend has told me that they are 1970's with tweeters "built in" to the
woofer!
It's a so called wide range unit. But the standards required of HF
response in those days were rather different - I'd expect it to be perhaps
10dB down at 10kHz - and only that good directly on axis.
Home brewed designs for this sort of speaker would often include a
special amp with a tailored response to help hide the deficiencies, as it
were.
This could be what you are looking for:
http://www.geocities.com/thevenialcritic/w2.jpg
An advert from Practical Electronics, June 1966.
The standards required weren't so different.
It's just that many manufacturers were selling crap.
--
Roger.
|

November 26th 03, 09:57 PM
posted to uk.rec.audio
|
|
Wharfedale Super 8
Dave Plowman wrote:
In article ,
Oddjob wrote:
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend has told me that they are 1970's with tweeters "built in" to the
woofer!
It's a so called wide range unit. But the standards required of HF
response in those days were rather different - I'd expect it to be perhaps
10dB down at 10kHz - and only that good directly on axis.
Home brewed designs for this sort of speaker would often include a
special amp with a tailored response to help hide the deficiencies, as it
were.
This could be what you are looking for:
http://www.geocities.com/thevenialcritic/w2.jpg
An advert from Practical Electronics, June 1966.
The standards required weren't so different.
It's just that many manufacturers were selling crap.
--
Roger.
|

November 28th 03, 04:29 AM
posted to uk.rec.audio
|
|
Wharfedale Super 8
"Chris Morriss" wrote in message
...
In message ,
harrogate writes
"Chris Morriss" wrote in message
...
In message , Oddjob
writes
Hello all, I have a pair of loudspeakers in walnut cabinets.
I couldn't find the tweeter by feeling around the front - the grills
don't
come off.
I opened them to find wharfedale super 8 / RS / DD drivers inside. A
friend
has told me that they are 1970's with tweeters "built in" to the
woofer!
Can anybody shed anymore light on these speakers?
I don't think they can handle much power as they distort quite easily
:-(
Thanks
They are nice high-quality drive units from the 60s and early 70s.
They
are twin cone units. They roll off at 12kHz or so, so a
high-efficiency
tweeter might be useful.
You'll find quite a lot of info on the web about them.
--
Chris Morriss
Actually known as the Wharfedale Super 8 RSDD - for roll surround doped
(or
was it double) diaphragm.
1" voice coil, 13,000 Gauss field strength. Total Flux 54,000 Maxwells
(In old pre-SI units)
I've probably got the Fs frequency somewhere.
--
Chris Morriss
That's interesting 'cos the 1971 HiFi Yearbook has them listed as 1" Voice
Coil(Aluminium) , Gap Flux 14,500 Gauss. Total Flux 60,000 Maxwells. Paper
cone with double diaphragm. H.C. 6 watts RMS 12W Peak. FR 40-20,000Hz.
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