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American Bass Hawk 1244 - 4th Order Bandpass
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<blockquote data-quote="shredder2" data-source="post: 8747179" data-attributes="member: 674047"><p>4th orders bring out the experts with a bunch of theories. I'd size your sealed side around 45-46hz and choose a ratio that won't overpower the lows then match tuning close to the sealed side. 1.5-2.5 is a good place to start. Depending on velocities and peakiness you might need to be a bit shy on port area due to length, If you are use a low port ratio to help with velocities. I took a look at that with that sub and in a 4th it don't look horrible.</p><p>In your setup in a Razor your starting from a bad position from the get anyways. Set the bar lower than normal. But a 2:1 4th tuned 47 around 40in2 of port looks OK to me.</p></blockquote><p></p>
[QUOTE="shredder2, post: 8747179, member: 674047"] 4th orders bring out the experts with a bunch of theories. I'd size your sealed side around 45-46hz and choose a ratio that won't overpower the lows then match tuning close to the sealed side. 1.5-2.5 is a good place to start. Depending on velocities and peakiness you might need to be a bit shy on port area due to length, If you are use a low port ratio to help with velocities. I took a look at that with that sub and in a 4th it don't look horrible. In your setup in a Razor your starting from a bad position from the get anyways. Set the bar lower than normal. But a 2:1 4th tuned 47 around 40in2 of port looks OK to me. [/QUOTE]
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American Bass Hawk 1244 - 4th Order Bandpass
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