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Multi-Way Conventional loudspeakers with crossovers

High excursion aluminium diaphragm woofer with inverted surround.
High excursion aluminium diaphragm woofer with inverted surround.
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Old 9th April 2019, 07:37 AM   #1
Windforce85 is offline Windforce85  Poland
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Default High excursion aluminium diaphragm woofer with inverted surround.

I am looking for high excursion aluminium diaphragm woofers with inverted surround to efficiently reproduce low frequencies in small volume. I'm not looking for woofers with other diaphragm material or surround taller than basket.

Peerless SBS160F35AL model is not available for retail purchase.



Any other ideas?
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Old 9th April 2019, 08:46 AM   #2
HiFiCompass is offline HiFiCompass  Ukraine
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Maybe this:

Accuton AS168-9-470 | HiFiCompass

Aluminium, inverted surround...
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Old 9th April 2019, 09:20 AM   #3
Windforce85 is offline Windforce85  Poland
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I forgot to mention that price should be lower than for a kidney.
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Old 9th April 2019, 10:25 AM   #4
marco_gea is offline marco_gea  Italy
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Default The seldom spoken truth is...

...that air volume displacement (Vd = Sd x Xmax) is NOT the only thing that matters.

All else being equal
, a (large-Sd, low-Xmax) woofer will ALWAYS sound better than a (smaller-Sd, larger-Xmax) one.

Also, because of Boyle's law and the air's asymmetrical reaction to compression vs. expansion, achieving the same air volume displacement with a larger box volume is ALWAYS beneficial in terms of reduced distortion. Which, ceteris paribus, means that a (low Mms, high efficiency) woofer will ALWAYS be better than a (higher Mms, lower efficiency) one.

Fads come and go, but the laws of Physics don't change...
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Old 9th April 2019, 10:40 AM   #5
Windforce85 is offline Windforce85  Poland
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Keeping this thread on merit is appreciated. This is just engineering choice which has been taken. I am already familiar with physics, thanks.

Last edited by Windforce85; 9th April 2019 at 10:42 AM.
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Old 9th April 2019, 12:06 PM   #6
Ugg10 is offline Ugg10  United Kingdom
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Assuming this is the speaker you are looking at -

https://www.tymphany.com/drivers/dri...eet.php?id=703

Closest I can come up with are -

Hivi/Swan M6A - but this has a traditional rubber surround and slightly less Xmax - Product information:M6a Bass-Midrange

Monocor SPH-170 - this seems to have the inverted seal but only a small xmax (+-3mm) an a more traditional cone - SPH-170

The Tang Band W6-623I and W6-658I have a double roll seal but are more conventional cones and are paper/PP - W6-658I - 6.5" PPM. Woofer - TB SPEAKER CO., LTD.

A couple of options but none fit the bill I don't think.


Edit - how about this - bit more expensive but a 6.5" subwoofer with large xmax - Imagine I6SW-v2 6.5" Subwoofer - 12v Electronics

Last edited by Ugg10; 9th April 2019 at 12:12 PM.
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Old 9th April 2019, 12:14 PM   #7
CharlieLaub is offline CharlieLaub  United States
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Quote:
Originally Posted by Windforce85 View Post
I am looking for high excursion aluminium diaphragm woofers with inverted surround to efficiently reproduce low frequencies in small volume.
I do not think you will find such a driver in the "hi-fi" category. High excursion, low Vas drivers will likely use the traditional "outward" roll surround.

You might try to look at low-profile subs that are intended for car use. For example, Dayton Audio has that flat cone 10" sub:
Dayton Audio LS10-44 10" Low Profile Subwoofer Dual 4 Ohm
I has a sort of "multi roll" surround that is inverted next to the cone but then has another outward roll next to the frame. Not sure what "high excursion" means to you but Xmax=10mm.
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Old 9th April 2019, 01:53 PM   #8
picowallspeaker is offline picowallspeaker  Italy
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6 mm excursion
Aurum Cantus AC-180F1 7" Woofer
also with dual VC
Aurum Cantus AC-180F1D 7" DVC Woofer
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Old 9th April 2019, 08:24 PM   #9
Windforce85 is offline Windforce85  Poland
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Quote:
Originally Posted by CharlieLaub View Post
I do not think you will find such a driver in the "hi-fi" category.

Charlie, not only in the "hi-fi" but also everywhere else, I'm near certain it is not possible to find such a driver, unfortunately. But maybe there is small driver manufacturer doing such or smth like that, maybe someone here knows it and point me to it.
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Old 9th April 2019, 08:38 PM   #10
ollieimpossible is offline ollieimpossible  Canada
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closest match that I can think of.... SB Acoustics SW26DAC76-4 Shallow 10" Subwoofer 4 ohm
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