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<blockquote data-quote="SATANZ31" data-source="post: 6725546" data-attributes="member: 620252">Current system:Two dual 4 ohm 15&quot; L7&#039;s in a 3 cubic foot sealed box wired to 1 ohm.MTX 81000d amp.Nissan PathfinderI am currently running the sealed box. According to the instructions that came with the subs, this should be the box to run for highests SPL&#039;s. My problem is... I really don&#039;t think it is as loud as it should be. My buddies two 12&quot; L7&#039;s in a ported box hit just about as hard with a cheap *** amp and little 4 guage power and ground. I mean it&#039;s loud, don&#039;t get me wrong, but I really think my old round soloberic 15&#039;s were louder in my 300zx. They are wired down to 1 ohm and I know that MTX amp is only stable down to 2 ohms. It does clip, and lately it seems to clip easier and easier each time (is that even possible?). I plan on getting a Fosgate T20001bd here soon as they are stable down to 1 ohm and would give each sub a full 1000watts (assuming I can supply the current).The question I have is, would the 12 cubic foot box needed for the ported box be louder than the sealed box for them.&nbsp; I have heard so much hype about the ported boxes with these subs and frankly, I believe it when comparing my buddies 12 L7&#039;s to my 15 L7&#039;s.Any thoughts? Take the time and build a ported box wall in the back of the pathy?</blockquote>

[QUOTE="SATANZ31, post: 6725546, member: 620252"] Current system: Two dual 4 ohm 15" L7's in a 3 cubic foot sealed box wired to 1 ohm. MTX 81000d amp. Nissan Pathfinder I am currently running the sealed box. According to the instructions that came with the subs, this should be the box to run for highests SPL's. My problem is... I really don't think it is as loud as it should be. My buddies two 12" L7's in a ported box hit just about as hard with a cheap *** amp and little 4 guage power and ground. I mean it's loud, don't get me wrong, but I really think my old round soloberic 15's were louder in my 300zx. They are wired down to 1 ohm and I know that MTX amp is only stable down to 2 ohms. It does clip, and lately it seems to clip easier and easier each time (is that even possible?). I plan on getting a Fosgate T20001bd here soon as they are stable down to 1 ohm and would give each sub a full 1000watts (assuming I can supply the current). The question I have is, would the 12 cubic foot box needed for the ported box be louder than the sealed box for them. I have heard so much hype about the ported boxes with these subs and frankly, I believe it when comparing my buddies 12 L7's to my 15 L7's. Any thoughts? Take the time and build a ported box wall in the back of the pathy? [/QUOTE]

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