Xtro flare redevelopement thread |
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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Posted: 11 January 2018 at 5:46pm |
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Edited by gen0me - 11 January 2018 at 5:47pm |
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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Here is narrow dispersion longer one: 50cm wide, 40 high, 48.9 long(including plywood) to the driver.
https://s1.postimg.org/5bjrsewb67/7_10_33_5_7final.jpg https://s1.postimg.org/5q2yxg06sf/7_10_33_5_7final_pic.jpg https://s1.postimg.org/4g01r4rmzj/7_10_33_5_7final_off_axis_response.jpg https://s1.postimg.org/2ojuae7pqn/7_10_33_5_7final_directivity.jpg 45H x 30V on top of the bandwidth. |
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toastyghost
The 10,000 Points Club Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10919 |
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The F1 horns actually get quite beamy at the upper register, you can see it on the isobars in the production partner review of the EVO.
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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5)
? Came to mind previous phase bungs. I have no idea why some frequencies are played one side of phase plug and a bit higher only another. Here is one more good horn. Reasonable dispersion up to 2.6kHz. 7.10.33.5 I was comparing different horns like Function 1 Resolution or Martin Audio H3. H3 has wide dispersion and plays up to 2k only. All Resolution's have very narrow dispersion and play really high. Like: 445hz - 5k77Hz >>> 25h x 20v 445hz - 5k77Hz >>> 50h x 25v Maybe its impossible with wide dispersion to go that high. |
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doller
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fantastic thread, Thanks guys.
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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1) 2) 3) 4) Thats why 7,10,24 plays that high. I guess slot and outside are out of phase. It cant be the slot itself. Wavelength there has ~15cm. Edited by gen0me - 18 August 2017 at 4:16am |
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Teunos
Old Croc Joined: 23 November 2008 Location: The Netherlands Status: Offline Points: 1799 |
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Keep on exploring good sir
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Best regards,
Teun. |
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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I was wrong. The 800hz mountain is not from rear ch standing waves. It seems to be tendency of horn for higher efficiency. I did similar things to those preventing midband wasting(bigger smoother mouth) and all efficiency of top bandwidth rose to level similar to this 800hz.
Here are the two horns: 7,10,16,2(little phase plug update) fits in xtro. 7,10,24 bigger one(higher) 7,10,16,2: 7,10,24: 7,10,16,2: 7,10,24: 7,10,16,2: 7,10,24: |
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Sapro2
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Sorry to hijack but Teunos that was a brilliant post. Thankyou |
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Splat Soundsystem
Baby Sham pram Soundsystem Sapro - SoundCloud https://soundcloud.com/sapro DJ Sapro. West country free party DJ and Producer. |
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gen0me
Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999 |
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7.10 update. https://drive.google.com/folderview?id=0B5y23T8xURtGN3hvcks1WV9pNWc
And here Ive got a winner: Diffraction slot was a briliant idea. The bold line(top pattern) is always horizontal. Edited by gen0me - 09 July 2017 at 2:59pm |
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gen0me
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Teunos there is no option of normalized response in Abec. I can only make measurements at points or arcs. Not the whole sphere.
Here is bonus standing wave in rear chamber: Does xtro originally has this mountain around 800Hz? |
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gen0me
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Update:
https://drive.google.com/folderview?id=0B5y23T8xURtGR1hhRGx5UnUyRG8 Thought there is a standing wave on 800Hz and there is but changing rear chamber dont eliminate that bump. |
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