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Designing a V-baffle reflex in WinISD |
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norty303 
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Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8806 |
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 Posted: 17 March 2015 at 10:20pm |
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Only through Facebook, but we have some mutual friends locally.
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My laser stuff: Frikkin Lasers
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trev1998
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Joined: 30 April 2019 Status: Offline Points: 19 |
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Posted: 25 May 2019 at 6:56pm |
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i know this is an old post but i would really like to know if a v baffle design would have the same effect with 2 15" woofers?
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MattStolton
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Joined: 04 September 2010 Location: Walthamstow Status: Offline Points: 4234 |
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Posted: 25 May 2019 at 7:30pm |
Yes but the exact frequency of the significant dip in output would happen lower, and the 15" will likely start to beam from that point too, making it a real problem to get much above 500-600Hz out with out a lot of fecking about. Crossing to a big horn carrying a BMS 459x coaxial Mid/HF from 600Hz is feasible, but money and effort start biting you on the arse again. |
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Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains" |
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DMorison
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Posted: 26 May 2019 at 3:49pm |
Absolutely this. The thing is, by that point, it's almost as well just biting the bullet and building the Peter Morris dual 12" horn loaded with the coax upppermid-high.
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trev1998
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Posted: 26 May 2019 at 6:09pm |
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thank for the input.let me give you details on what i am doing maybe you can help. so Im planing on building a V style Top box based on the Sample Audio KMT Lite (as seen bellow) but instead of 2x12" it would be 2x15" paired with a 8"/10" a 2" CD .Compact is the word that is why i opted for the v style design .What are the draw backs if any of this design and what key factors should i take into consideration ?
Sample Audio KMT Lite  My Prototype design  |
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toastyghost
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Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10919 |
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Posted: 26 May 2019 at 6:36pm |
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In your example design the HF horn masks a lot of the upper region of the mid horn, and causes reflections back into the mouth also. You can make a HF driver and horn act as a phase plug, within limits, but it takes more than just making something that looks like one.
Frankly, if that’s your goal I would aim for a coaxial compression driver on a larger single horn. You’ll get better pattern control, more predictable response, and less IMD. |
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JonB67
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Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Posted: 26 May 2019 at 8:43pm |
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Have you looked at the peter morris designs?
You're in danger of spending a lot of time and effort designing something rather similar to but probably not as good as what's already available as a free plan. I applaud your intent, but worth checking his pm90 and pm60 out before you go much further if you haven't already done so. I guess if you're looking at 15 inch drivers you want to use it as a stand alone box without subs or are crossing to something that can't get very high?
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trev1998
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Posted: 26 May 2019 at 11:53pm |
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thanks ,im going to give then a look
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trev1998 wrote: