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Enclosure Design & Construction
Tempest Box @ 35 HZ?!?!?
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<blockquote data-quote="Daniel" data-source="post: 83917" data-attributes="member: 542295"><p>Alright, I was told that people could help me out with how large the port should be and how far it should go in by posting the interior dimensions of my box, and the T/S Parameters of the sub.</p><p></p><p>Re 3.50 ohms Le 2.9 mH</p><p></p><p>Qms 6.7 Mms 195 grams</p><p></p><p>Qes 0.40 Cms 0.34 mm/N</p><p></p><p>Qts 0.38 Rms 3.5 N*s/m</p><p></p><p>Fs 18.8 Hz Sd 779 cm^2</p><p></p><p>Vas 317 liters BL 14.2</p><p></p><p>Xmax 16.4 mm one way EBP 47</p><p></p><p>SPL 89.1 dB @ 1W/1m No 0.51%</p><p></p><p>Pmax 400W per voice coil; 750W total to the driver Distortion</p><p></p><p>And for the Interiors of the Box: ( L x W x H )</p><p></p><p>L= 30in.</p><p></p><p>W= 14.5 in.</p><p></p><p>H= 15.5 in.</p><p></p><p>I want to tune it to 35 HZ, and assuming I was to use to front of the box, and the far right side (still in the front) of the box as part of the port, how far to the left would it be, how tall would it be, and how far should the boards go into the box? I really want to finish this because its been sitting around for quite some time now, if you guys dont want to do the math, can you tell me how to make the port using the T/S paras and the Internam Dimensions!</p><p></p><p>Thanks in advance.</p></blockquote><p></p>
[QUOTE="Daniel, post: 83917, member: 542295"] Alright, I was told that people could help me out with how large the port should be and how far it should go in by posting the interior dimensions of my box, and the T/S Parameters of the sub. Re 3.50 ohms Le 2.9 mH Qms 6.7 Mms 195 grams Qes 0.40 Cms 0.34 mm/N Qts 0.38 Rms 3.5 N*s/m Fs 18.8 Hz Sd 779 cm^2 Vas 317 liters BL 14.2 Xmax 16.4 mm one way EBP 47 SPL 89.1 dB @ 1W/1m No 0.51% Pmax 400W per voice coil; 750W total to the driver Distortion And for the Interiors of the Box: ( L x W x H ) L= 30in. W= 14.5 in. H= 15.5 in. I want to tune it to 35 HZ, and assuming I was to use to front of the box, and the far right side (still in the front) of the box as part of the port, how far to the left would it be, how tall would it be, and how far should the boards go into the box? I really want to finish this because its been sitting around for quite some time now, if you guys dont want to do the math, can you tell me how to make the port using the T/S paras and the Internam Dimensions! Thanks in advance. [/QUOTE]
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Tempest Box @ 35 HZ?!?!?
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