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Soundqubed hds215 box decisions
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<blockquote data-quote="seedlings" data-source="post: 8400544" data-attributes="member: 666435"><p>In a 2000 Montero Sport, powered by an Alpine MRP M500, the planning process has begun for the box. There will be roughly 3.75 ft3 (or exactly that, if needed) space available. Could fudge up to 4.5 if that would make an extreme difference (10dB+). The Soundqubed site has recommendations that include a 3.75 ft3 ported with 60 in2 port area, 19" long, and I can certainly do this. Site doesn't say that box is specifically for THIS sub, and also doesn't list the tuning freq. The sub has an FS of 36 Hz, so the port tuning freq would need to be higher than 36Hz, right? This means reduced performance in the bottom octave below 40Hz?</p><p></p><p>Box size chart:</p><p></p><p><a href="http://www.soundqubed.com/Box-Sizes-and-Tuning-_ep_68.html" target="_blank">Box Sizes and Tuning</a></p><p></p><p>The other option is sealed, and technically this Fs=36.34 and Qes=.895 divide out to a "sealed recommendation" from:</p><p></p><p><a href="http://www.diyaudioandvideo.com/Calculator/SealedPorted/" target="_blank">Sealed or Ported Enclosure Calculator</a></p><p></p><p>I am not an SPL hound, not competing, just want a fun system to listen to electronic, synth, rock, metal. Not so into rap, but do like bass.</p><p></p><p>Would the 3.75 ft3 ported box from the Soundqubed be best, or sealed, or a different box?</p><p></p><p>Thanks for your insight!</p><p></p><p>CHAD</p><p></p><p>***edit: if this should be in the Enclosure 101 forum, mods please move.</p></blockquote><p></p>
[QUOTE="seedlings, post: 8400544, member: 666435"] In a 2000 Montero Sport, powered by an Alpine MRP M500, the planning process has begun for the box. There will be roughly 3.75 ft3 (or exactly that, if needed) space available. Could fudge up to 4.5 if that would make an extreme difference (10dB+). The Soundqubed site has recommendations that include a 3.75 ft3 ported with 60 in2 port area, 19" long, and I can certainly do this. Site doesn't say that box is specifically for THIS sub, and also doesn't list the tuning freq. The sub has an FS of 36 Hz, so the port tuning freq would need to be higher than 36Hz, right? This means reduced performance in the bottom octave below 40Hz? Box size chart: [URL="http://www.soundqubed.com/Box-Sizes-and-Tuning-_ep_68.html"]Box Sizes and Tuning[/URL] The other option is sealed, and technically this Fs=36.34 and Qes=.895 divide out to a "sealed recommendation" from: [URL="http://www.diyaudioandvideo.com/Calculator/SealedPorted/"]Sealed or Ported Enclosure Calculator[/URL] I am not an SPL hound, not competing, just want a fun system to listen to electronic, synth, rock, metal. Not so into rap, but do like bass. Would the 3.75 ft3 ported box from the Soundqubed be best, or sealed, or a different box? Thanks for your insight! CHAD ***edit: if this should be in the Enclosure 101 forum, mods please move. [/QUOTE]
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