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H/R118 by Startec

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VECTORDJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote VECTORDJ Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2016 at 9:43pm
Add 10 cm (4 inch) to H. Moving the door and port up. This would add more than a cubic foot of air space. Adjust port L and try 40/35/30 Hz fb . Would this increase low bass output?
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SonicXtasy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SonicXtasy Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2016 at 10:22pm
I was considering extending the front approximately 4 inches. It wouldn't give much in the way of added internal volume but it would extend and increase the size of the horn some.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SonicXtasy Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2016 at 10:23pm
My only concern would be that it may also lessen the maximum output by running out of xmax early.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SonicXtasy Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2016 at 2:16am
You can get down to 30hz but the efficiency starts to drop dramatically. Max output is compromised as well.


18HP1060 standard vs 10cm higher tuned to 30hz (standard is black)



18HP1060 standard vs 10cm higher tuned to 30hz max output(standard is black)



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VECTORDJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote VECTORDJ Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2016 at 10:27pm
Interesting......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote VECTORDJ Quote  Post ReplyReply Direct Link To This Post Posted: 28 December 2016 at 9:43pm
Hi, Can you post your HR horn inputs. I am still trying to get more low bass out of this design. Thanx.
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