Simple, Big 18" Horn for Club use - Page 2 - diyAudio
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Old 28th February 2013, 09:39 PM   #11
Xoc1 is offline Xoc1  United Kingdom
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Join Date: Nov 2008
Location: Devon UK
Hi Elleman
I had a little play around with the parameters in Hornresp but failed to come up with any real improvements. All speakers are a compromise between many differing requirements, and it is finding the right balance for your application that is important.
Increasing the width to 610 will have very little effect, but if you add bracing to the cabinet then this still leaves the 600mm internal dimension nearly correct. If you have offcuts then use them to brace the panels as due to the simple design the panels are very large!
The cab really needs the driver to have a big Xmax. Lower excursion drivers would need limited amounts of power to avoid damage
With the 18SW100 with its 12.5 Xmax, Xmax is reached at about a theoretical 77.46V (750W@8R) so doubling up that for thermal losses makes probably 1.5KW + per cab practical, with the correct hi pass filter.
Sim of 4 cabs at 12.5mm xmax and pic atttached
Regards Xoc1
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File Type: jpg Club 18 X 4.jpg (82.4 KB, 200 views)
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