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smitske96 View Drop Down
Young Croc
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Joined: 16 February 2016
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2021 at 5:42pm
@toastyghost
1m is indeed to short of a distance, last measurements I was bound by the weather conditions. Going for a larger distance would give me problems with other boundaries. In the coming weeks, weather is improving which gives me more freedom. A 244x122cm piece of wood will probably do the job as a reflective underground. For now that with a large grass field is the best I can do. A large concrete surface would be ideal, but not much of those in the neighborhood.

In the above pics, the IR window is set at the default values. So 125ms left and 500 right.


Btw thanks for that PDF, have not read that one yet Smile


Edited by smitske96 - 23 March 2021 at 11:34am
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bob4 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2021 at 6:32pm
Which 21" driver did you go for in the end? 


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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2021 at 8:53pm
Originally posted by bob4 bob4 wrote:

Which 21" driver did you go for in the end? 



I settled on the SAN214.50. The 215.30 was still very hard to get.
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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 12 April 2021 at 10:59am
Quick update:

Getting the tuning frequency a bit higher to around 70-80Hz is very difficult with the current port layout.
So for now I am going back to panels that close fully at the front, and drill or cut the ports in to the panel (like the T24N). 

Also busy with the bracket for the DCX464 and HF950 horn. I can't mount the HF950 just at the front due to the weight. And not only an the entry due to the extra ringing of the horn if its floating free in the air.
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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 26 April 2021 at 7:22pm
Next up is the following layout:
Hornresp predicts (as far as it can) some smoother response between 150-500 Hz. Also some gain rearchamber volume and space to get the drivers mounted. Hornlength is a bit shorter. 





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FOO View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FOO Quote  Post ReplyReply Direct Link To This Post Posted: 26 April 2021 at 8:46pm
You are nearing something like EV MTH4 mid section.
Missing the triangled block between the drivers, to reflect the sound 🙂


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smitske96 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 27 April 2021 at 2:09pm
Correct, I am also opting to add such a panel later on while testing.
Note that the current panel between the two panels is for bracing purposes.
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