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<blockquote data-quote="Plutoman" data-source="post: 6369841" data-attributes="member: 601528">Current at the moment is an IB 10&quot; sub, Infinity Perfect 10.1.&nbsp; 200 watts to use or so.I want to build the most efficient system possible for a low end performance.&nbsp; Aiming at everything below 50-60hz, down to around 25hz, is my target area.&nbsp; An even performance curve is not necessary, I&#039;m looking at a swappable build type, where I can move to the IB setup when I&#039;m looking for a more SQ approach.&nbsp; More of a DD, type, however, rather than a one note wonder.Objective is to build a low powered, single sub setup, that can surprise people, but not on a tone, but on music.From what I can see, I&#039;m thinking a big 6th order bandpass is ideal for this.&nbsp; I may build it in the trunk if I&#039;m doing a large enough box.I&#039;m looking at recommendations for tuning/sizing.&nbsp; Didn&#039;t get anything back in the general discussion area.I have access to wood and PVC piping.&nbsp; My dad&#039;s a plumber.Sub.Qts - .42Qms - 8.83Qes - .441Fs - 28.35hzVas - 1.134 ft^3Xmax - .54 inches (13.7mm)Sd - 53.63 in^2Current thoughts, after playing with WinISD, are a 3 cube section @ 27hz, and a 1.5 cube section @ either 44 or 50 hz.At the 50hz tuning, I lose about a decibel between 31 and 41, but gain massively on the upper end, and with a similar low end due to the similar low tuning for the other side.Comparing it to a 32hz tuning on a typical ported box @ 3 cubes (large for a single 10 anyways), I gain quite a bit everywhere except 31-34hz, which has around a 2db difference.Suggestions?&nbsp; Recommendations?</blockquote>

[QUOTE="Plutoman, post: 6369841, member: 601528"] Current at the moment is an IB 10" sub, Infinity Perfect 10.1. 200 watts to use or so. I want to build the most efficient system possible for a low end performance. Aiming at everything below 50-60hz, down to around 25hz, is my target area. An even performance curve is not necessary, I'm looking at a swappable build type, where I can move to the IB setup when I'm looking for a more SQ approach. More of a DD, type, however, rather than a one note wonder. Objective is to build a low powered, single sub setup, that can surprise people, but not on a tone, but on music. From what I can see, I'm thinking a big 6th order bandpass is ideal for this. I may build it in the trunk if I'm doing a large enough box. I'm looking at recommendations for tuning/sizing. Didn't get anything back in the general discussion area. I have access to wood and PVC piping. My dad's a plumber. Sub. Qts - .42 Qms - 8.83 Qes - .441 Fs - 28.35hz Vas - 1.134 ft^3 Xmax - .54 inches (13.7mm) Sd - 53.63 in^2 Current thoughts, after playing with WinISD, are a 3 cube section @ 27hz, and a 1.5 cube section @ either 44 or 50 hz. At the 50hz tuning, I lose about a decibel between 31 and 41, but gain massively on the upper end, and with a similar low end due to the similar low tuning for the other side. Comparing it to a 32hz tuning on a typical ported box @ 3 cubes (large for a single 10 anyways), I gain quite a bit everywhere except 31-34hz, which has around a 2db difference. Suggestions? Recommendations? [/QUOTE]

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