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PostPosted: 28 Oct 2009, 13:26 
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Joined: 28 Oct 2009, 13:15
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I am looking for some guidance for a first time builder. I have downloaded a plan for the Zigmahornets using the Fostex FE103E but I will be using the Tang Band W4-1337 SD and changing to 3/4" plywood.
Question: Can I keep the interior dimensions or are there some suggestions that would be better for the W4's

Thanks in advance for your help!

Darryl


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PostPosted: 29 Oct 2009, 12:43 
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Joined: 28 May 2008, 21:53
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Location: Winnipeg, CANADA
Hi Darryl, welcome to the forum.
Between the Tang Band W4-1337SD and Fostex FE103E. Qts is almost the same. Fs is about 10Hz lower than the FE103E and Vas is not too far off between the two. So it may work well.
Cheers

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PostPosted: 29 Oct 2009, 12:54 
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Joined: 28 Oct 2009, 13:15
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Gio

Thanks for the reply and insight. My first adventure was with a Seas Cygnet Mk II kit from madisound with boxes from parts express. They came out very well I was pleased with the sound. This will be my fist attempt at a full range and hopefully I can upload pics when done.
Darryl


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PostPosted: 29 Oct 2009, 20:33 
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Let us know how you make out. I'm sure others will also be interested on how well this driver works in the enclosure.
Cheers

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PostPosted: 29 Oct 2009, 21:22 
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Joined: 02 Sep 2008, 14:34
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Location: Rochester, NY
Yes please keeps us posted I am still on the fence on my next set of speakers.

Thanks

Alan

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Cheers, Alan
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Denon POA 2200 | Bottlehead Quickie with PJCCS | Integra CDC 3.1 | SOTA Sapphire-RG301-Grado Gold 1 | Soundwave Soliloquy Series I


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PostPosted: 06 Nov 2009, 01:25 
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Joined: 23 Apr 2009, 16:23
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Location: North Idaho, USA
I've been partial to trying the "Tang Band W4-1320SJ 4" Bamboo Cone Driver" or the Pioneer A11EC80-02F.
I have built two pairs of Zigmahornets, one with one driver and one set with two drivers using Merrill DCA 4's

Listening to the 'dualies' right now and I love the extra omf the pair gives in the lower range.

Best of luck on your build!! I love mine

-Tevis


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PostPosted: 06 Nov 2009, 13:06 
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Be sure to post some photos. We would love to see them.

Cheers

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PostPosted: 09 Nov 2009, 09:03 
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Joined: 28 Oct 2009, 13:15
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Hi All!

Just wanted to post this update from my original question. I have changed direction on the enclosures. I will be using 3" dia sch 40 PVC pipe with double foam core for the main section and a 4" tee section for the driver mounting. I am attempting to simulate the dimensions of the sigmahornet and have calculated the internal volume at .25cuft. Attached is a rough sketch if what I am trying to build and II would appreciate comments on dimensions and any damping.

Cheers


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PostPosted: 09 Nov 2009, 13:24 
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Oh I love the idea! What are you using for the simulations?

If you haven't already seen these, take a look as there is some good info.
http://www.t-linespeakers.org/projects/ ... index.html
http://www.t-linespeakers.org/projects/ ... index.html

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[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


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PostPosted: 09 Nov 2009, 18:07 
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Joined: 28 Oct 2009, 13:15
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Reply to Rob

Fantastic ABS pipes! I do have some questions that you may be able to help me with.
For simulation, I only patterned the dimensions and internal volume from the zigmahornet with the Fostex FE103. I have not done nor am I capable of doing any simulations. If someone can help based on my dimensions, I would appreciate all feedback.
For your pipes, how did you address the intersections of the 4" tee ? I plan on reducing the body of the pipe to 3" dia as shown but the inside has many irregular surfaces. Should I add some damping material inside the tee section behind the driver? I have some 1/2 " acoustical foam damping that was going to be put in directly behind the driver for about 7" of vertical length and start with the upper 1/3 filled with light stuffing.
Any comments on the vent dia and length?

Thanks


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