Whacky driver mystery.....
 

Keith G wrote:

"malcolm" wrote


Anyone ever seen the like?



they are 'full range' drivers, the smaller central paper cone is a

'whizzer'



Ah! Now you mention that also, that term is familiar.



the driver prob is 40 - 50 hz to 16 -18 khz or similar,
is the tweeter a piezo? if it is, then no crossover inside so a CLEAN

sound.

regards malcolm



Unfortunately no, these speakers have a little paper tweeter about 2.5
inches Ø, see:

http://www.apah69.dsl.pipex.com/keit...ow/tweeter.jpg

The bass cone looks thus:

http://www.apah69.dsl.pipex.com/keit...w/basscone.jpg





ok so full range bass/mid/low high plus a paper tweeter.




--
¸.·´¯`·.¸((((º.·´¯`·.¸¸.·´¯`·.¸((((º.·´¯`·.¸ ¸.·´¯`·.¸((((º.·´¯`·.¸
LED Headlamps and Sea Fishing UK
http://www.geocities.com/malc_hurn
http://www.geocities.com/malc_hurn/battlefield1942.html
¸.·´¯`·.¸((((º.·´¯`·.¸¸.·´¯`·.¸((((º.·´¯`·.¸ ¸.·´¯`·.¸((((º.·´¯`·.¸

Whacky driver mystery.....
 

Keith G wrote:

"Form@C" wrote


Anyone ever seen the like?


If you happen to like building valve amps too, these are probably just
what you want. They should sound great as they are probably quite
sensitive (those paper cones!). You don't get a flat frequency response,
but they will probably sound very nice. It may be worth pairing them with
more modern dome tweeters though as the cone types tend to be very
directional.

The extra cone is known as a "parasitic" cone and tends to add mid-upper
mid response to the main cone. Sometimes they are "damped" with a foam
ring on the outer edge to control its resonance.




Very interesting.

I'm with you entirely on the dome tweeters - in fact I've already swapped
them for another pair off the pile - Wharfedale Laser 80s - which are a
three-way design with domed tweeters. By contrast, they are immediately
'better defined' and have that 'freshness' and immediacy I expect with paper
drivers. (Valve amplification, btw.) In fact, they are sounding very nice
indeed atm and certainly don't smell so bad!

The homebrews were definitely interesting and by no means unpleasant to
listen to, but I can see now they sounded a tad 'veiled' by comparison.
(Back in the garage now or FOC to anyone who wanted to collect them....)





do you have a photo of the speakers, not just the drivers, would be
interesting to see.
regards malcolm



--
¸.·´¯`·.¸((((º.·´¯`·.¸¸.·´¯`·.¸((((º.·´¯`·.¸ ¸.·´¯`·.¸((((º.·´¯`·.¸
LED Headlamps and Sea Fishing UK
http://www.geocities.com/malc_hurn
http://www.geocities.com/malc_hurn/battlefield1942.html
¸.·´¯`·.¸((((º.·´¯`·.¸¸.·´¯`·.¸((((º.·´¯`·.¸ ¸.·´¯`·.¸((((º.·´¯`·.¸

Whacky driver mystery.....
 

"malcolm" wrote

The homebrews were definitely interesting and by no means unpleasant to
listen to, but I can see now they sounded a tad 'veiled' by comparison.
(Back in the garage now or FOC to anyone who wanted to collect them....)





do you have a photo of the speakers, not just the drivers, would be
interesting to see.
regards malcolm



Yup, certainly do.

Full-on front view so you can't see the cobwebs, bleached veneer, crap or
paint splashes on the boxes......

Whacky driver mystery.....
 

"Keith G" wrote in message
...

"malcolm" wrote

The homebrews were definitely interesting and by no means unpleasant
to
listen to, but I can see now they sounded a tad 'veiled' by
comparison.
(Back in the garage now or FOC to anyone who wanted to collect
them....)





do you have a photo of the speakers, not just the drivers, would be
interesting to see.
regards malcolm



Yup, certainly do.

Full-on front view so you can't see the cobwebs, bleached veneer, crap or
paint splashes on the boxes......



Oops, the link would be handy, wouldn't it?

http://www.apah69.dsl.pipex.com/keit...oldspeaker.jpg

Whacky driver mystery.....
 

Keith G wrote:
"Keith G" wrote in message
...

"malcolm" wrote

The homebrews were definitely interesting and by no means
unpleasant to listen to, but I can see now they sounded a tad
'veiled' by comparison. (Back in the garage now or FOC to anyone
who wanted to collect them....)





do you have a photo of the speakers, not just the drivers, would be
interesting to see.
regards malcolm



Yup, certainly do.

Full-on front view so you can't see the cobwebs, bleached veneer,
crap or paint splashes on the boxes......



Oops, the link would be handy, wouldn't it?

http://www.apah69.dsl.pipex.com/keit...oldspeaker.jpg

Hmmm. Not the ones I had in mind. Your 'whizzer' is much bigger than mine.

Whacky driver mystery.....
 

"Triffid" wrote

do you have a photo of the speakers, not just the drivers, would be
interesting to see.
regards malcolm



Yup, certainly do.

Full-on front view so you can't see the cobwebs, bleached veneer,
crap or paint splashes on the boxes......



Oops, the link would be handy, wouldn't it?

http://www.apah69.dsl.pipex.com/keit...oldspeaker.jpg

Hmmm. Not the ones I had in mind. Your 'whizzer' is much bigger than
mine.



examines fingernails


.......yersss, I've heard that said before.......


:-)