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Old 5th September 2013, 10:35 PM   #1
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Default Explain: Slotted Woofers - see video

Here is a link to a video of some Aurum Quadral High End Platinum speakers (or perhaps Titan models) -

AurumQuadral High End 2011 Teil 1 - YouTube

I'm confused by the fact that the only woofers are set back from a slotted front.

Can anyone explain the design concept and logic behind this choice?

I'm just curious as it is an uncommon speaker design.

Steve/bluewizard

Last edited by BlueWizard; 5th September 2013 at 10:37 PM.
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Old 5th September 2013, 11:59 PM   #2
OllBoll is offline OllBoll  Sweden
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I'd say the reason is that it looks impressive, and most non pro high end speakers are mostly art.
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Old 6th September 2013, 12:13 AM   #3
taloyd is offline taloyd  United States
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Talking Amen

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Originally Posted by OllBoll View Post
I'd say the reason is that it looks impressive, and most non pro high end speakers are mostly art.
That is an economy of words, a generous helping of snark, and a breath of fresh air - all at the same time! (I totally agree, by the way.)

cheers,
-Tal

Last edited by taloyd; 6th September 2013 at 12:27 AM. Reason: clarity, brevity, adieu
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Old 6th September 2013, 12:28 AM   #4
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Default Isn't the basic idea to...

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Originally Posted by BlueWizard View Post
Here is a link to a video of some Aurum Quadral High End Platinum speakers (or perhaps Titan models) -

AurumQuadral High End 2011 Teil 1 - YouTube

I'm confused by the fact that the only woofers are set back from a slotted front.

Can anyone explain the design concept and logic behind this choice?

I'm just curious as it is an uncommon speaker design.

Steve/bluewizard
... create a low pass filter using the volume of air and the reduced slot area?
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Old 6th September 2013, 12:44 AM   #5
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Looks more like a tapped horn of sorts eg the port is wrapped around the edges of the woofers. MAYBE
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Old 6th September 2013, 01:19 AM   #6
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Default Are these not otherwise...

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Originally Posted by Greebster View Post
Looks more like a tapped horn of sorts eg the port is wrapped around the edges of the woofers. MAYBE
...conventional rear ported designs?
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Old 6th September 2013, 02:24 AM   #7
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So, you think this is pure show?

Also, could you expand on the idea that this slot is something of a low pass filter?

Thanks for the responses.

This isn't quite the same speaker, but it gives you an idea of the price range we are dealing with -

Quadral Aurum Vulkan VIII (Pair) at Audio Affair

I suspect the speakers in the Video are more expensive, though hard to tell.

Steve/bluewizard
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Old 6th September 2013, 05:10 AM   #8
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Quote:
Originally Posted by logician View Post
...conventional rear ported designs?


The slot the woofers are within is the port
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Old 6th September 2013, 05:23 AM   #9
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Quote:
Originally Posted by BlueWizard View Post
So, you think this is pure show?
Tapped horns exist all over the place. When done properly act as a bandpass.

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Also, could you expand on the idea that this slot is something of a low pass filter?
Search button is there for a reason

Quote:
Thanks for the responses.

This isn't quite the same speaker, but it gives you an idea of the price range we are dealing with -

Quadral Aurum Vulkan VIII (Pair) at Audio Affair

I suspect the speakers in the Video are more expensive, though hard to tell.

Steve/bluewizard
I would think the other way around.

They also may be slot loaded open baffle

Nelson Pass: The Slot Loaded Open Baffle Project

Would suggest reading from the beginning, but skip to the last page for a couple ideas that can be done... Nelson Pass: The Slot Loaded Open Baffle Project
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Old 6th September 2013, 06:32 AM   #10
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Not sure of the concept behind it but their entire range of speakers sounds better than an awful lot of the competition at the price. So they must be doing something right, despite the ugly looks.
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