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<blockquote data-quote="Moritz Bachmann" data-source="post: 215696" data-attributes="member: 13680">I&#039;ve finally built my first self- designed subwoofer. I decided to go for the 15DS115, ~90L net Volume and big ports with 3D adapted flares. &nbsp;The difficult part was actually to make the front small enough that the ports fit within the depth of the speaker, while trying to get as much flare area as possible. A simple 40mm flare radius would have made the front much larger. &nbsp;Tuning was more or less a blind shot. The vents were removable and I tryed 3 different lenghts before they and the back panel were glued. As I ran out of time,&nbsp; I measured just some short sweeps in REW, trying to tell the tuning frequency from the SPL and phase graph and then cut some cm off the vent pipeTuning should be somewhere at 38 Hz now, but that&#039;s just what I can tell from the Rew measurements.&nbsp;I put more than 90 hours into the design, but therefore it is an enjoyment to put all the parts together and see how perfectly all of it fits. I havn&#039;t really tested them to their limit, they are way to overpowered as monitor subwoofer, but I&#039;m looking forward to hear and measure what they are capable of. &nbsp;<a href="https://www.dropbox.com/sh/frit8jmum8ptds3/AADfJ97ODnKO5Y4Gz1iBtawva?dl=0" target="_blank">https://www.dropbox.com/sh/frit8jmum8ptds3/AADfJ97ODnKO5Y4Gz1iBtawva?dl=0</a></blockquote>

[QUOTE="Moritz Bachmann, post: 215696, member: 13680"] I've finally built my first self- designed subwoofer. I decided to go for the 15DS115, ~90L net Volume and big ports with 3D adapted flares. The difficult part was actually to make the front small enough that the ports fit within the depth of the speaker, while trying to get as much flare area as possible. A simple 40mm flare radius would have made the front much larger. Tuning was more or less a blind shot. The vents were removable and I tryed 3 different lenghts before they and the back panel were glued. As I ran out of time, I measured just some short sweeps in REW, trying to tell the tuning frequency from the SPL and phase graph and then cut some cm off the vent pipe Tuning should be somewhere at 38 Hz now, but that's just what I can tell from the Rew measurements. I put more than 90 hours into the design, but therefore it is an enjoyment to put all the parts together and see how perfectly all of it fits. I havn't really tested them to their limit, they are way to overpowered as monitor subwoofer, but I'm looking forward to hear and measure what they are capable of. [URL]https://www.dropbox.com/sh/frit8jmum8ptds3/AADfJ97ODnKO5Y4Gz1iBtawva?dl=0[/URL] [/QUOTE]

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