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Bandpass question/discussion..
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<blockquote data-quote="Savant" data-source="post: 112513" data-attributes="member: 546108"><p>Ok guys, here's the thingy..</p><p></p><p>First off, this plot is probably pointless since the woofer used isn't the one going in the box, I had to pick something that I thought 'might' be close (looking at TS-W1041DVC but there isn't on in WinISD and can't find the specs for those.. so.. guessing <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue :p" loading="lazy" data-shortname=":p" /> )</p><p></p><p>So.. now.. This is a 4th Order Bandpass.. has 4 ports (2.5" each, mach 0.01).. tuned to 115 Hz..</p><p></p><p>Here is the question.. would a 6th Order reduce the sag in the middle of the range? If so, how much? (guess).. How would I go about trying to figure out the front/rear chambers, ports, etc.. WinISD doesn't support 6th order..</p><p></p><p>I looked at maybe using straight ported but that's a bit off looking.. sealed might be the way to go on the 10"s too (the 12"s will be sealed I think.. maybe ported.. haven't tried plotting those yet)..</p><p></p><p>So.. 6th Order... ? Worth it for what I want? (that being the 10"s subs to run ~75Hz to ~175Hz)..</p><p></p><p>Here is the image (kinda *****.. sorry)</p><p></p><p>Thanks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p><p></p><p>Man.. that's bad.. K, front chamber 0.7 ft^3, rear chamber 0.405 ft^3.. frequency 115.. 4 2.5" ports 3.77" long.. If you need more info, let me know..</p><p></p><p>K.. the peaks are at +9dB, the valley at +5db.. 75 Hz (+6dB) is about the same as 175 Hz (+6.3dB)..</p></blockquote><p></p>
[QUOTE="Savant, post: 112513, member: 546108"] Ok guys, here's the thingy.. First off, this plot is probably pointless since the woofer used isn't the one going in the box, I had to pick something that I thought 'might' be close (looking at TS-W1041DVC but there isn't on in WinISD and can't find the specs for those.. so.. guessing :p ) So.. now.. This is a 4th Order Bandpass.. has 4 ports (2.5" each, mach 0.01).. tuned to 115 Hz.. Here is the question.. would a 6th Order reduce the sag in the middle of the range? If so, how much? (guess).. How would I go about trying to figure out the front/rear chambers, ports, etc.. WinISD doesn't support 6th order.. I looked at maybe using straight ported but that's a bit off looking.. sealed might be the way to go on the 10"s too (the 12"s will be sealed I think.. maybe ported.. haven't tried plotting those yet).. So.. 6th Order... ? Worth it for what I want? (that being the 10"s subs to run ~75Hz to ~175Hz).. Here is the image (kinda *****.. sorry) Thanks [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Man.. that's bad.. K, front chamber 0.7 ft^3, rear chamber 0.405 ft^3.. frequency 115.. 4 2.5" ports 3.77" long.. If you need more info, let me know.. K.. the peaks are at +9dB, the valley at +5db.. 75 Hz (+6dB) is about the same as 175 Hz (+6.3dB).. [/QUOTE]
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