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Markaudio Alpair Hybrid
Markaudio Alpair Hybrid
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Old 4th July 2019, 01:44 PM   #1
Spassgeneral is offline Spassgeneral  Germany
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Default Markaudio Alpair Hybrid

Hi Guys,
long time no see.

It is time to do something new.
I have two pairs of alpair 10.3m lie around.
I looked at all the recommended enclosures and think the FHxl would be fine.
but the footprint of these is to large. I would like something in my favourite
100 x 25 x30 cm.
I also would like to do some dual driver as I already have them on hand.

A larger micro tower would be fine or a double MarKen wich I have seen already, but I did not find any plans for both of them.

So I'd like to develop something by my own.
playing around with hornresp I came to following approach.

It's kind of transmission line loading into a horn.

What do you think?
Is this a way to go?

thanks in advance

Der Spassgeneral
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Last edited by Spassgeneral; 4th July 2019 at 01:58 PM.
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Old 5th July 2019, 07:01 AM   #2
Spassgeneral is offline Spassgeneral  Germany
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150 views and not a single opinion?

come on ...
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Old 5th July 2019, 04:27 PM   #3
chris661 is offline chris661  United Kingdom
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Looks like it'll work fine to me, so long as the narrow port doesn't suffer at high power levels.

FWIW, I'd aim for a response that slopes downwards into the bass unless you're using the speakers outdoors.

Chris
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Old 5th July 2019, 05:05 PM   #4
Spassgeneral is offline Spassgeneral  Germany
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Hi Chris,
You are right. I also thought about the narrow gap.
But it is almost 40% of the total SD of both speakers. So it should be sufficient.
I can play around with hornresp to optimize this.
Have to see how widening does effect the response.
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Old 5th July 2019, 05:10 PM   #5
planet10 is offline planet10  Canada
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Markaudio Alpair Hybrid
Quote:
A larger micro tower would be fine or a double MarKen wich I have seen already, but I did not find any plans for both of them.
There is no larger microTower (but it is certainly doable), most of the Mzr-Kens are in paid plansets.

For 2 drivers take a single driver enclosure and “double” it.

dave
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Old 5th July 2019, 05:11 PM   #6
planet10 is offline planet10  Canada
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Markaudio Alpair Hybrid
Quote:
But it is almost 40% of the total SD of both speakers.
The Sd has nothing to do with it.

dave
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Old 5th July 2019, 06:28 PM   #7
Spassgeneral is offline Spassgeneral  Germany
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I thougt member COGITECH build a pair of micro tower based on alpair 10.
But may be it was only his intention.

Last edited by Spassgeneral; 5th July 2019 at 06:30 PM.
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Old 5th July 2019, 06:29 PM   #8
Spassgeneral is offline Spassgeneral  Germany
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If the opening to the horn is not dependant on sd. What else ? I assumed it depends on the amount of air that has to move through.
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Old 5th July 2019, 06:48 PM   #9
Spassgeneral is offline Spassgeneral  Germany
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Hornresp max SPL looks fine, too.
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Old 5th July 2019, 09:50 PM   #10
planet10 is offline planet10  Canada
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Quote:
Originally Posted by Spassgeneral View Post
If the opening to the horn is not dependant on sd. What else ?
Vas, Qt, how low the box is tuned, the volume of the box, the driverís volume displacement will put a limit on how low or loud they can go.

There are no real easy answers, these really need to be modeled.

dave
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