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Half Calhoun?
Half Calhoun?
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Old 25th April 2008, 05:41 PM   #1
Telrab is offline Telrab  Netherlands
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Default Half Calhoun?

Hello i've created a testcabinet with 2x FR125 (bipole configuration, sealed enclosure, based on planet10-designplans). I like the sound, but i'm also drawn to the (half-)Calhoun. For now i've 2 questions :
1. What's are the main differences between Calhoun and sealed-bipole SQ-wise?
2. Are there any plans for the half-Calhoun or would it be sufficient to half the height and double the width of the originial Calhoun?

Thanks in advance for your help,
Bart
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Old 28th April 2008, 07:14 PM   #2
Cal Weldon is offline Cal Weldon  Canada
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Half Calhoun?
Hi Bart,

I can't answer those questions as the box was designed for me not by me. I will ask around and see if I can get you a response. Glad to hear you have an interest. I am pleased with mine but they are still in unfinished boxes for now till I find some room for them.
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Old 28th April 2008, 07:37 PM   #3
planet10 is offline planet10  Canada
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Half Calhoun?
So many spawn, even i am having trouble keeping track. I do believe i have a half-Cal in my email.

Cal's Calhouns are the best box i have yet heard for the CSS WR125s...

dave
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Old 28th April 2008, 08:14 PM   #4
Cal Weldon is offline Cal Weldon  Canada
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Half Calhoun?
A picture if you haven't already seen them. I much prefer the side mounting of one driver over both on front.
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File Type: jpg img_0469.jpg (52.3 KB, 360 views)
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Old 28th April 2008, 09:08 PM   #5
Telrab is offline Telrab  Netherlands
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Cal and Dave,

Nice to know that they are the best xR125 box you've heard. To improve WAF i would like to build the half-version. Side-mounting looks like a nice trick. Are the cabinets to be placed against the wall for full BSC?

Bart
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Old 28th April 2008, 09:09 PM   #6
Cal Weldon is offline Cal Weldon  Canada
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Half Calhoun?
They work well away from the wall as well but I always say you should experiment to your liking. The WR's have plenty to offer in the bass department.
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Old 28th April 2008, 10:45 PM   #7
Scottmoose is offline Scottmoose  United Kingdom
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IIRC I emailed Dave some CSS dimensions so watch this space. I retuned it a bit too to give a little more LF gain.
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Old 29th April 2008, 10:46 AM   #8
Telrab is offline Telrab  Netherlands
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Scott, do you have any idea about the -3db point in the bass-response?
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Old 29th April 2008, 11:43 AM   #9
Scottmoose is offline Scottmoose  United Kingdom
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Depends on the amplifier & the room. ~50Hz as a very rough guide. Ultimate extension wasn't a priority.
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Old 2nd May 2008, 10:27 PM   #10
Cal Weldon is offline Cal Weldon  Canada
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Half Calhoun?
Yes, I think if you are concerned with extension, you can consider a helper woofer in a separate box. The Calhouns offer sufficient bass but not that deep. Hey it's only a 4.5" driver.
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