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Second Skin Audio

Subwoofer enclosure strange noise during higher bass


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In the future you will probably have better results if you face the sub and port back towards the rear and have them up close to it. Facing the sub up makes the trunk rattle more than it needs to.

Also looking at the pictures it seems like your port is just a rectangular hole cut into the box. I hope this is not the case but if it is, that is your problem. You would have built a sealed box and then cut a hole into it. The port need to be a long line of 9x2.5 inch hole. Like a tunnel.

If you did build a real port disregard that last part.

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Sounds like the coil is hitting on the inside of the magnet

2007 Ford Focus SES Hatchback

Pioneer HU

4 Digital Designs 9515i's in a B pillar.

2 Soundstream XXX 15K's (running at 16 volts)

Soundstream Mids/Highs in custom door panels (getting rebuilt soon)

Soundstream TA2.160 and TA2.400

Sky High and KNU wiring

3 Banks of Maxwell caps 

Winston Lithium (not a fan)

Bump4Life 250 Amp Alt. aka USAlternators

Soundstream Focus and Avenger Build Log

Instagram @p4linnovation

YouTube: Team Blowin Loud 

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try pushing on parts of the box and see if it stops rattling

2007 Ford Focus SES Hatchback

Pioneer HU

4 Digital Designs 9515i's in a B pillar.

2 Soundstream XXX 15K's (running at 16 volts)

Soundstream Mids/Highs in custom door panels (getting rebuilt soon)

Soundstream TA2.160 and TA2.400

Sky High and KNU wiring

3 Banks of Maxwell caps 

Winston Lithium (not a fan)

Bump4Life 250 Amp Alt. aka USAlternators

Soundstream Focus and Avenger Build Log

Instagram @p4linnovation

YouTube: Team Blowin Loud 

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Share on other sites

If it was it should be present though all notes the sub is hitting

it depends on tuning of the box and all. but as I said above try pushing on the box to see if it will stop. if it stops when you push on a certain side then that side is weak

2007 Ford Focus SES Hatchback

Pioneer HU

4 Digital Designs 9515i's in a B pillar.

2 Soundstream XXX 15K's (running at 16 volts)

Soundstream Mids/Highs in custom door panels (getting rebuilt soon)

Soundstream TA2.160 and TA2.400

Sky High and KNU wiring

3 Banks of Maxwell caps 

Winston Lithium (not a fan)

Bump4Life 250 Amp Alt. aka USAlternators

Soundstream Focus and Avenger Build Log

Instagram @p4linnovation

YouTube: Team Blowin Loud 

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Share on other sites

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