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Does this box look okay for two 12" HDS3's?
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<blockquote data-quote="Justinh722" data-source="post: 8379530" data-attributes="member: 545828"><p>I'm trying to design a box for my BMW 325i. I have two 12" HDS3's and an Audiopipe 3k watt amp. I came up with 4.25 net cubic feet with 5.3 gross. I'm going with 50 sq inches of port area. I came up with a 4 inch slot port that is 27 inches long. First port board I have it at 21 inches and the 2nd at 6 inches. I have a tune of 31 hz.</p><p></p><p>I have a max of 30 inches wide and a height of 14 inches. My depth can range anywhere up to 27 inches.</p><p></p><p>My design has the subs facing back and the port facing back. That leaves a gap of only .4 inches between subs. Is this an issue?</p><p></p><p>My dimensions are 30w x 14h x 27d. I initially wanted to do a blow through box with aeroports coming up into my rear deck since I already cut a big piece out of the sheet metal to get sound in the cabin. I also took a large piece out of the rear behind the seats and removed the factory sound deadening between seats. I found that I would need a 4th order bandpass to make it even sound decent.</p><p></p><p>If someone could look over my measurements I would greatly appreciate it. I used bassbox 6 pro.</p><p></p><p>12.5 x 30 - back</p><p></p><p>12.5 x 26 - front</p><p></p><p>30 x 27 - top</p><p></p><p>30 x 27 - bottom</p><p></p><p>14 x 27 - side</p><p></p><p>14 x 27 - side</p><p></p><p>12.5 x 21 - port</p><p></p><p>12.5 x 6 - port</p><p></p><p>My basic question is will it be a problem with the subs being so close together? Are my calculations right? I had to do bassbox pro as a sealed box and added my port as a misc object for the displacement since there isn't an option for slot port. I appreciate the help.</p></blockquote><p></p>
[QUOTE="Justinh722, post: 8379530, member: 545828"] I'm trying to design a box for my BMW 325i. I have two 12" HDS3's and an Audiopipe 3k watt amp. I came up with 4.25 net cubic feet with 5.3 gross. I'm going with 50 sq inches of port area. I came up with a 4 inch slot port that is 27 inches long. First port board I have it at 21 inches and the 2nd at 6 inches. I have a tune of 31 hz. I have a max of 30 inches wide and a height of 14 inches. My depth can range anywhere up to 27 inches. My design has the subs facing back and the port facing back. That leaves a gap of only .4 inches between subs. Is this an issue? My dimensions are 30w x 14h x 27d. I initially wanted to do a blow through box with aeroports coming up into my rear deck since I already cut a big piece out of the sheet metal to get sound in the cabin. I also took a large piece out of the rear behind the seats and removed the factory sound deadening between seats. I found that I would need a 4th order bandpass to make it even sound decent. If someone could look over my measurements I would greatly appreciate it. I used bassbox 6 pro. 12.5 x 30 - back 12.5 x 26 - front 30 x 27 - top 30 x 27 - bottom 14 x 27 - side 14 x 27 - side 12.5 x 21 - port 12.5 x 6 - port My basic question is will it be a problem with the subs being so close together? Are my calculations right? I had to do bassbox pro as a sealed box and added my port as a misc object for the displacement since there isn't an option for slot port. I appreciate the help. [/QUOTE]
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Does this box look okay for two 12" HDS3's?
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