Welder84 Posted March 29, 2018 Report Share Posted March 29, 2018 I currently have 2 15s, I'm not trying to get into all specifics, but more of a general question.... I'm trying to get noticeably louder in my system... With sufficient power supply, amp power, custom box, etc, is there a noticeable difference between the 2-15s vs 2-18s...? We've all went from bigger to smaller and more subs trying different routes for deeper and or more punch, but im trying not to spend another$3000 for differences not really noticeable... Also... Anybody running a single dd9521 that feels they are really impressed and worth the money? Link to comment Share on other sites More sharing options...
slowfkncar Posted March 30, 2018 Report Share Posted March 30, 2018 Direct swapping the same model woofer for a bigger size off the same power "generally" gives more output if done right. Link to comment Share on other sites More sharing options...
d-nice88 Posted April 10, 2018 Report Share Posted April 10, 2018 I went from 15's to 18's and i love my 18s wayy louder imo. Just make sure you have the proper air space for the 18s they like a HUGE box Link to comment Share on other sites More sharing options...
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