Neal82 Posted May 23, 2012 Report Share Posted May 23, 2012 Running all polk audio in my truck, with having 3 kids kinda getting out of the rediculously loud business.... going to purchase a 88-98 under back seat prefab cause them some rediculous cuts id hafta make and the box is only 140$ shipped and rhino-lined. My question is... 1 mm1240 ported with about 1.6cu after sub and port displacement... or 2 mm1240s sealed with about. 1cu each.... also going to be running either setup at 500rms so 2 sealed 500rms or 1ported 500rms. Watcha think??? Quote Truck Polk 4x6 Plates Polk 4x6 Polk PA660 4Channel amp JVC USB Deck Wifes Car (under construction) Polk MoMo 6.5" Components Polk 6x9s Polk Pa660 4Channel amp Still trying to talk her into a sub or 2 Boat (under construction) Polk 5.25" Components Polk 6.5" Components 2x American Bass DX15s Polk PA660 4Channel 2x Polk PA880 Sub Amps (hopefully) Link to comment Share on other sites More sharing options...
getlocivic Posted May 23, 2012 Report Share Posted May 23, 2012 id do single 12 ported// ive done many installs where ive made the single sub louder than the pair.. sealed boxes cut down on output greatly but generally play everything well ported boxes have much more output but depending on the tune/design it can have a huge rolloff (meaning..say 35hz bass is loud but 40hz is not) Quote Link to comment Share on other sites More sharing options...
Neal82 Posted May 23, 2012 Author Report Share Posted May 23, 2012 Ya, kinda figuring itll be louder ported as the sub also getting fully powered.... Quote Truck Polk 4x6 Plates Polk 4x6 Polk PA660 4Channel amp JVC USB Deck Wifes Car (under construction) Polk MoMo 6.5" Components Polk 6x9s Polk Pa660 4Channel amp Still trying to talk her into a sub or 2 Boat (under construction) Polk 5.25" Components Polk 6.5" Components 2x American Bass DX15s Polk PA660 4Channel 2x Polk PA880 Sub Amps (hopefully) Link to comment Share on other sites More sharing options...
Bump4life Posted May 23, 2012 Report Share Posted May 23, 2012 in my experiences ported is the way to g. Design it correctly and be happy! I love your highs. Polks are great. I have a pair myself Quote Buyer/Seller Feedback Thread: http://www.stevemead...5015-bump4life/ MB C220 153 Trunk Car Build Log: http://www.stevemead...d/#entry1840136 MB C280 Ipad Dash SQ Build Log: http://www.stevemeadedesigns.com/board/topic/194484-bump4lifes-new-benz-tony-c-relay-kit-pictures-ce-electric-audison-front-stage-installed/ My SPL Log: http://www.stevemead...__fromsearch__1 BMW M340 xDrive Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4... Best Scores out of a trunk 153.0 sealed legal full tilt clamped 5524 @ 42 hz 154+ windows down, 155+ kick Link to comment Share on other sites More sharing options...
luvmiiba55 Posted May 23, 2012 Report Share Posted May 23, 2012 If you know how to build a good ported box do it if not go sealed u cant go wrong sealed imo Quote 3 alpine type r 12's more to come soon Link to comment Share on other sites More sharing options...
Neal82 Posted May 23, 2012 Author Report Share Posted May 23, 2012 Ya, after working for a few car audio places ive found polk to be the cleanest, I run polk in both of my vehicles, i know how to do ported and itll definatly be cheaper to go ported.... but I might be able to get another pa880 down the road.... they say to get the same sound out of a sealed box as a ported u need double the power.... so... 2 subs and an amp on each will definitely be more expensive... but i think in the long run will be better. Quote Truck Polk 4x6 Plates Polk 4x6 Polk PA660 4Channel amp JVC USB Deck Wifes Car (under construction) Polk MoMo 6.5" Components Polk 6x9s Polk Pa660 4Channel amp Still trying to talk her into a sub or 2 Boat (under construction) Polk 5.25" Components Polk 6.5" Components 2x American Bass DX15s Polk PA660 4Channel 2x Polk PA880 Sub Amps (hopefully) Link to comment Share on other sites More sharing options...
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