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<blockquote data-quote="noble brown" data-source="post: 8130178" data-attributes="member: 653341">I wish I could understand half of what you cats are saying, but I&#039;m learning. I am thinking of building a fourth for a pair of type r&#039;s. So I throw some numbers in a program I found on the net and I have some questions. First shouldn&#039;t the volume need to be larger then with a ported? The program o only allowed for calculations for one speaker at a time so do I just double the volumes for two? Is a db gain of two or three audibly noticeable, if so how much. For an everyday driver I wanna be able to get the lows nicely (listen to rap) but I also wanna gain as much as I can too. Currently I&#039;m tuned to 32hz and I like it but wondering if it&#039;s practical to sacrifice a bit of the low end for some gain. I guess I&#039;m curious how low rap on average gets. Isn&#039;t low 30&#039;s rare?&nbsp; also is the functional output of a given port the same regardless of shape as long as the volume is the same?</blockquote>

[QUOTE="noble brown, post: 8130178, member: 653341"] I wish I could understand half of what you cats are saying, but I'm learning. I am thinking of building a fourth for a pair of type r's. So I throw some numbers in a program I found on the net and I have some questions. First shouldn't the volume need to be larger then with a ported? The program o only allowed for calculations for one speaker at a time so do I just double the volumes for two? Is a db gain of two or three audibly noticeable, if so how much. For an everyday driver I wanna be able to get the lows nicely (listen to rap) but I also wanna gain as much as I can too. Currently I'm tuned to 32hz and I like it but wondering if it's practical to sacrifice a bit of the low end for some gain. I guess I'm curious how low rap on average gets . Isn't low 30's rare? also is the functional output of a given port the same regardless of shape as long as the volume is the same? [/QUOTE]

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