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DC lvl 5 m3 15 in a 4th order


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How big should I make the sealed side in a fourth order bandpass for a 15" lvl 5 m3? There will be four 15's in the enclosure

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depends on power, these subs technically arent designed for 4th orders

Actaully the M3 models the best out of all the other lvl 5s for a 4th. But sealed sizes will vary based on what you are trying to achieve and desired sealed resonant. However I will share what I have ran and tested. sealed per of 2.05cu will yield a seal resonant of 46hz. Which should give you a start point

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Thank you for they replies . I will be using 4 DC 5k's @ 1 ohm each.

Pioneer 80PRS

4 Scan Speak discovery 4" full rage

2 Ampere Audio 6.5 Comp sets

3 Singer 370 Hairpin's

1 Odyssey g78/34-P1500

6 DieHard Platinum Marine g31

4 XS D3100's

DC 175.4

DC 90.4

4 DC 5k's

4 m3 lvl 5 15's

Soundrive RCA's

Lots of welding lead & SkyHigh

Team DC AUDIO

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I had two 10k's, I was rising to 6.6 ohms ( like 4900 watts total @ 33hz) and losing a ton of power. I am in the process of redoing the enclosure ( making sealed side bigger and opening up the port ) but my point is, I probably wont be seeing anywhere near 5k per sub.

Pioneer 80PRS

4 Scan Speak discovery 4" full rage

2 Ampere Audio 6.5 Comp sets

3 Singer 370 Hairpin's

1 Odyssey g78/34-P1500

6 DieHard Platinum Marine g31

4 XS D3100's

DC 175.4

DC 90.4

4 DC 5k's

4 m3 lvl 5 15's

Soundrive RCA's

Lots of welding lead & SkyHigh

Team DC AUDIO

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And here we go

Why are your posts always so negative in the DC section. If you're going to be an ass just stay out of this section.

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depends on power, these subs technically arent designed for 4th orders

What does make a sub designed for a fourth

Typically an efficiency bandwidth product that is within an acceptable range. Fs divided by Qes should be between a range of 40-100. High Qts can also be another good sign that the sub is suited for a sealed or 4th order bandpass enclosure.

Im not the one you want to try to troll. Just a fyi for you.

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