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Alpair 10 wide bass driver and Alpair 10 Fullrange
Alpair 10 wide bass driver and Alpair 10 Fullrange
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Old 20th January 2009, 07:12 PM   #71
Henkjan is offline Henkjan  Netherlands
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I'll try to find some time later this week....

I'll aim for a normal TL tuned at 40Hz or so.. maybe someone else can take a shot at a ML-TL?
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Old 15th March 2009, 11:37 AM   #72
Telstar is offline Telstar  Italy
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Anyone used the 10FR in open baffle?
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Old 19th May 2018, 05:13 PM   #73
giantstairs is offline giantstairs  Spain
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Quote:
Originally Posted by Henkjan View Post
I did a few sims for the FR alpair10, parameters will give plenty of freedom to choose the cabinet size.. I would myself probably go for the SBB4 or slightly larger with the same tune, but smaller BR cabinets are possible (even as small as 6 liters tuned @40Hz will give a nice response).

I just received a pair, so now I must "just" find the time to build some cabs and test them
I have a few of these Alpair 10 g1 lying around and would like to make a few small satellite speakers. Is there an existing bass reflex design that someone could point me towards or should I try for the above 6 litres?
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Old 23rd May 2018, 06:30 PM   #74
giantstairs is offline giantstairs  Spain
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I found 2 bass reflex designs on the MarkAudio webpage, one 12l and one 16l. Are these designed for the gen 1?

I would prefer to keep the design as small as possible without sacrificing too much bass impact. I will go without a sub for now.
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Old 23rd May 2018, 06:35 PM   #75
planet10 is offline planet10  Canada
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Alpair 10 wide bass driver and Alpair 10 Fullrange
Given how out of date the Mark Audio website is they could well be. A10p fits about 10-17 litre, A10.3 wants to be in a bit smaller box. I haven’t played with the small end yet thou.

dave
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Old 23rd May 2018, 06:36 PM   #76
Scottmoose is offline Scottmoose  United Kingdom
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Either that or for the 2nd generation model.

9.5 litres tuned to 45Hz was a nice compromise with the original unit if compact was necessary. I'd be wary going smaller; you'll choke off LF output & you may mass-load the cone / moving mass.
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Last edited by Scottmoose; 23rd May 2018 at 06:38 PM.
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Old 25th May 2018, 03:43 PM   #77
giantstairs is offline giantstairs  Spain
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Thanks Scott and Dave!

Will pushing to 12 litres be an improvement? That's about maximum size I'd go. Does the 12l design on the MarkAudio website look good?

I was fiddling around with a box calculator a few days back and came up with a SBB4 alignment of 9,35 litres tuned to 40Hzs... Is this any good?

Obviously, I have never designed any speakers before, just been following some of the many designs floating around the forum.
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Old 30th May 2018, 09:41 AM   #78
giantstairs is offline giantstairs  Spain
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I will go with the 9.5 liter cab tuned to 45Hz. Do I need to include the volume of the port and the driver as well? I haven’t found Vd with the specs I have.

Quote:
Originally Posted by Scottmoose View Post
Either that or for the 2nd generation model.

9.5 litres tuned to 45Hz was a nice compromise with the original unit if compact was necessary. I'd be wary going smaller; you'll choke off LF output & you may mass-load the cone / moving mass.
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Old 30th May 2018, 10:30 AM   #79
Scottmoose is offline Scottmoose  United Kingdom
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Yes. 1 litre should be ~close enough.
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Old 30th May 2018, 05:22 PM   #80
planet10 is offline planet10  Canada
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Alpair 10 wide bass driver and Alpair 10 Fullrange
Quote:
… volume of the driver ...
If the driver is in a rebated cutout with a 45° relief on the back side the extra volume of the driver in the box comes pretty close to the extra volume of box from the relief. Use something like 0.1-0.2 litres for the driver.

dave
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