Dual concentric
 

It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

--
*Pride is what we have. Vanity is what others have.

Dave Plowman London SW
To e-mail, change noise into sound.

Dual concentric
 

On Mon, 31 Dec 2007 13:17:30 +0000 (GMT), "Dave Plowman (News)"
wrote:

It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

Cost of manufacture would be my guess. With the tweeter stuck out in
front mixing and matching between models is easy - just change the
cosmetics.

d

--
Pearce Consulting
http://www.pearce.uk.com

Dual concentric
 

"Dave Plowman (News)" wrote:

It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

More complicated to make perhaps ? Greater depth would be a disadvantage in
ICE too.

Graham

Dual concentric
 

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades ago:
They sound like ****. Given that midrange frequencies are being bounced off
the back of the tweeter, the result ends up sounding like a pig's breakfast.
I've never heard a decent dual concentric car speaker. Perhaps it's due to
the shockingly bad crossovers used. Maybe it's just the cheap, crappy
drivers.

Trevor Wilson

Dual concentric
 

"Trevor Wilson" wrote in message
...

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades ago:
They sound like ****. Given that midrange frequencies are being bounced
off the back of the tweeter, the result ends up sounding like a pig's
breakfast. I've never heard a decent dual concentric car speaker. Perhaps
it's due to the shockingly bad crossovers used. Maybe it's just the cheap,
crappy drivers.

Trevor Wilson
what about in home audio then......cant say ive liked the sound of any of
kef d/c designs that much

Dual concentric
 

"corks" wrote in message
...

"Trevor Wilson" wrote in message
...

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to have
tweeters just stuck on the front. Any reason why this design has fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades ago:
They sound like ****. Given that midrange frequencies are being bounced
off the back of the tweeter, the result ends up sounding like a pig's
breakfast. I've never heard a decent dual concentric car speaker. Perhaps
it's due to the shockingly bad crossovers used. Maybe it's just the
cheap, crappy drivers.

Trevor Wilson
what about in home audio then......cant say ive liked the sound of any of
kef d/c designs that much

**AFAIK, the KEF (and other) products don't bugger up the sound by placing
the tweeter in front of the bass/mid driver. Having said that, I can't get
excited about any dual concentric driver I've ever heard. Including the much
vaunted Tannoys.

Trevor Wilson

Dual concentric
 

"Trevor Wilson" wrote in message
...

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to
have
tweeters just stuck on the front. Any reason why this design has
fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades
ago: They sound like ****. Given that midrange frequencies are being
bounced off the back of the tweeter, the result ends up sounding like
a pig's breakfast. I've never heard a decent dual concentric car
speaker. Perhaps it's due to the shockingly bad crossovers used. Maybe
it's just the cheap, crappy drivers.

Trevor Wilson



Also perhaps to do with the fact that the stereo 'information' is
carried by the higher frequencies which are lost in the carpet and seats
in most cars so many manufacturers have gone for seperate mid-high
speakers (not just tweeters) in the ends of the dash or the top corners
of the doors. It also means that they can then fit lower quality
speakers that do not need to handle full range in the doors and get what
the punter perceives to be better quality (i.e. more bass.)


--
Woody

harrogate three at ntlworld dot com

Dual concentric
 

Woody wrote:

"Trevor Wilson" wrote
"Dave Plowman (News)" wrote

It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to
have
tweeters just stuck on the front. Any reason why this design has
fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades
ago: They sound like ****. Given that midrange frequencies are being
bounced off the back of the tweeter, the result ends up sounding like
a pig's breakfast. I've never heard a decent dual concentric car
speaker. Perhaps it's due to the shockingly bad crossovers used. Maybe
it's just the cheap, crappy drivers.


Also perhaps to do with the fact that the stereo 'information' is
carried by the higher frequencies which are lost in the carpet and seats
in most cars so many manufacturers have gone for seperate mid-high
speakers (not just tweeters) in the ends of the dash or the top corners
of the doors. It also means that they can then fit lower quality
speakers that do not need to handle full range in the doors and get what
the punter perceives to be better quality (i.e. more bass.)

You didn't seriously imagine that it's possible to get a proper stereo image
in a car did you?

Graham

Dual concentric
 

In article ,
Trevor Wilson wrote:

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to
have tweeters just stuck on the front. Any reason why this design has
fallen out of favour?

**Perhaps people have finally discovered what I found a few decades ago:
They sound like ****. Given that midrange frequencies are being bounced
off the back of the tweeter, the result ends up sounding like a pig's
breakfast. I've never heard a decent dual concentric car speaker.
Perhaps it's due to the shockingly bad crossovers used. Maybe it's just
the cheap, crappy drivers.

You've confused me. Are you referring to the 'standard' design with a
tweeter or tweeters added to the main unit - or a dual concentric? I've
never seen a dual concentric for car use.

--
*Friends help you move. Real friends help you move bodies.

Dave Plowman London SW
To e-mail, change noise into sound.

Dual concentric
 

In article , Woody
scribeth thus

"Trevor Wilson" wrote in message
...

"Dave Plowman (News)" wrote in message
...
It occurred to me when fitting some new car speakers that a dual
concentric design would be ideal for this use. But they all seem to
have
tweeters just stuck on the front. Any reason why this design has
fallen
out of favour?

**Perhaps people have finally discovered what I found a few decades
ago: They sound like ****. Given that midrange frequencies are being
bounced off the back of the tweeter, the result ends up sounding like
a pig's breakfast. I've never heard a decent dual concentric car
speaker. Perhaps it's due to the shockingly bad crossovers used. Maybe
it's just the cheap, crappy drivers.

Trevor Wilson



Also perhaps to do with the fact that the stereo 'information' is
carried by the higher frequencies which are lost in the carpet and seats
in most cars so many manufacturers have gone for seperate mid-high
speakers (not just tweeters) in the ends of the dash or the top corners
of the doors. It also means that they can then fit lower quality
speakers that do not need to handle full range in the doors and get what
the punter perceives to be better quality (i.e. more bass.)



I've been out in a few new motahs over the festive madness, and I can't
say that in any of them .. Saab, Mercedes, and VW we're that
"impressive" and none of them had a DAB radio as factory fit
either!.....
--
Tony Sayer