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<blockquote data-quote="dogears" data-source="post: 435611" data-attributes="member: 554502"><p>The subs play a very narrow frequency band so you can port them and still have good sq.&nbsp; Please do not port the midbass drivers because they need to have a flat frequency response.&nbsp; Your midbass has a large part to do with sound quality and with them ported it would be almost impossible to eq them flat. For the frequency you tuned them to they would have a steep rolloff below that and a larger peak just above the tuning frequency.&nbsp;&nbsp; Lets say you cross over your subs @ 60hz and your midbass&#039;s would run 60-250hz.&nbsp; If you tune them to 90hz for instance you could have 5-10db drop @ 65hz and&nbsp; + 5 db @ 120hz then drop to -1db @ 200hz.(all #&#039;s are theoretical and would vary in car due to midbass boosting properties of car) Punch in the parameters in winisd and to get a ported box for a midbass that would play flat.&nbsp; The box would be about half as large as your sub box at minimum.&nbsp; I&#039;m sure there are people who have done it and made it work but it wouldnt be easy for an average sq setup. As for not having cancellation with speakers facing each other.&nbsp; Lets see you face your subs together and not wire them out of phase.&nbsp; Speakers facing each other can and will have some cancelation if running in phase.&nbsp; You are correct in saying that it will emphasize other frequencies but most of them will be in the mid and upper frequencies. Play a track recorded in/out of phase on 90% of the cars with door speakers facing each other and they will need to be wired out of phase.&nbsp; I was just suggesting something that would be fairly simple to install and have great sq for a daily driver.&nbsp; Component set in the doors and component set in prefab Q logic kicks would be easy to install in his maxima and sound great.&nbsp; Dont believe it come listen to mine and I bet the imaging and staging are as good as your 8, 5.25, &amp;amp; tweet setup and put in in half the time.</p></blockquote><p></p>

[QUOTE="dogears, post: 435611, member: 554502"] The subs play a very narrow frequency band so you can port them and still have good sq. Please do not port the midbass drivers because they need to have a flat frequency response. Your midbass has a large part to do with sound quality and with them ported it would be almost impossible to eq them flat. For the frequency you tuned them to they would have a steep rolloff below that and a larger peak just above the tuning frequency. Lets say you cross over your subs @ 60hz and your midbass's would run 60-250hz. If you tune them to 90hz for instance you could have 5-10db drop @ 65hz and + 5 db @ 120hz then drop to -1db @ 200hz.(all #'s are theoretical and would vary in car due to midbass boosting properties of car) Punch in the parameters in winisd and to get a ported box for a midbass that would play flat. The box would be about half as large as your sub box at minimum. I'm sure there are people who have done it and made it work but it wouldnt be easy for an average sq setup. As for not having cancellation with speakers facing each other. Lets see you face your subs together and not wire them out of phase. Speakers facing each other can and will have some cancelation if running in phase. You are correct in saying that it will emphasize other frequencies but most of them will be in the mid and upper frequencies. Play a track recorded in/out of phase on 90% of the cars with door speakers facing each other and they will need to be wired out of phase. I was just suggesting something that would be fairly simple to install and have great sq for a daily driver. Component set in the doors and component set in prefab Q logic kicks would be easy to install in his maxima and sound great. Dont believe it come listen to mine and I bet the imaging and staging are as good as your 8, 5.25, & tweet setup and put in in half the time. [/QUOTE]

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