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New 15" Ported Horn |
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K M Sound System 
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Joined: 04 March 2013 Location: Telford / Shrop Status: Offline Points: 183 |
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 Posted: 05 March 2013 at 6:57pm |
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Jackalous Is there any chance of getting a copy of the sketch up file?
Been searching around but no luck and that looks the closest i've seen! Thanks, Dub.
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Jackalous
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Joined: 04 March 2013 Location: Bristol Status: Offline Points: 100 |
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Posted: 06 March 2013 at 4:01pm |
I've added dimensions to my drawings of your plan, would this at all help you remember how you built them?
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Jackalous
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Posted: 06 March 2013 at 4:02pm |
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Jackalous
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Posted: 06 March 2013 at 4:05pm |
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Sorry I am relatively new to all this, what do you mean by the cut-off? And how would I tune the port?
Is there anything else you can tell me that would help when building these? Such as where you placed wadding (if any) and placing of the throat? Cheers
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Jackalous
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Posted: 06 March 2013 at 4:07pm |
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Hi Dub, no problem mate, whats your email?
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Jackalous
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Posted: 06 March 2013 at 4:08pm |
Hi Dub no problem mate, whats your email?
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K M Sound System
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Posted: 07 March 2013 at 12:33am |
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Cheers mate
 kollectivemindz@hotmail.co.uk Much appreciated, Dub
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ceharden
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Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776 |
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Posted: 03 September 2021 at 11:20pm |
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Time to drag up an old thread. I had such fond memories of my old ported horn design that I finally ended up building another set!
 Yes, there are two slightly different designs. The bottom two were built by hand as prototypes then the top two were built from CNC cut parts once I was happy with the design and drawn them up. First usage in anger is tomorrow, we'll see how they go! |
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JonB67
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Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Posted: 04 September 2021 at 8:45am |
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So given that you didnt have plans did you basically have to design from scratch again?
How close to the original do you think they are, or have you managed an improvement? What drivers are you using? |
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ceharden
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Posted: 04 September 2021 at 9:38am |
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I wasn't designing completely from scratch because I had a good idea of what I was aiming for. I used Hornresp to model it as I got fairly good agreement between simulation and reality when I built the last ones. I imagine they are pretty similar to the originals. Probably improvements in things like bracing and general construction.
Drivers are not ideal, they're RCF MB15H401 which are predominantly intended for use in mid-tops but I had 4 used drivers available, they simulated really well and are a very efficient driver. The closely related LF15G401 would be better and that's what I'll probably use if I turn these into confetti! |
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ceharden
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Posted: 06 September 2021 at 9:29pm |
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Setup with my new 3-way mid-tops built last year on only their third outing. Sounded really good, loads of headroom for the venue.
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smoore
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Joined: 30 March 2011 Location: N.Devon Status: Offline Points: 937 |
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Posted: 07 September 2021 at 7:55pm |
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That looks awesome mate! Glad to see speakers getting used! How have you found them?
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K M Sound System wrote: