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Help with Alpine SWR-12D4
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<blockquote data-quote="Jeffdachef" data-source="post: 8594628" data-attributes="member: 650438"><p>Your amp settings are fine. Put the box facing the rear trunk as close to the trunk/hatch lid as possible.</p><p></p><p>Basically your issue is you had a garbage designed ported box to begin with, and now you went sealed and lost overall output as well.</p><p></p><p>You need a properly designed custom ported box tailored to your vehicle and sub's electro mechanical parameters. That room filling bass you get can only be had with a properly designed ported or two 15s sealed on a lot of power. That type of room filling bass is anything under 40hz basically what we call "the lows". the thumps you hear are 40hz to 60hz. Your current setup just isnt hitting any deep notes. Box orientation can play a part thats why i told you to face the box in that certain position. However it cant override poor box design. Any Box you can buy at a store pre-made is 100% garbage.</p><p></p><p>Your logitech subwoofer is ported it'll play some deep notes but there's even notes deeper that can be achieved only in a car.</p><p></p><p>If you are ever in orange county, i'll show you the difference and see what you can do to improve your setup.</p></blockquote><p></p>
[QUOTE="Jeffdachef, post: 8594628, member: 650438"] Your amp settings are fine. Put the box facing the rear trunk as close to the trunk/hatch lid as possible. Basically your issue is you had a garbage designed ported box to begin with, and now you went sealed and lost overall output as well. You need a properly designed custom ported box tailored to your vehicle and sub's electro mechanical parameters. That room filling bass you get can only be had with a properly designed ported or two 15s sealed on a lot of power. That type of room filling bass is anything under 40hz basically what we call "the lows". the thumps you hear are 40hz to 60hz. Your current setup just isnt hitting any deep notes. Box orientation can play a part thats why i told you to face the box in that certain position. However it cant override poor box design. Any Box you can buy at a store pre-made is 100% garbage. Your logitech subwoofer is ported it'll play some deep notes but there's even notes deeper that can be achieved only in a car. If you are ever in orange county, i'll show you the difference and see what you can do to improve your setup. [/QUOTE]
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