AlexanderLeet Posted October 5, 2018 Report Share Posted October 5, 2018 Hi guys, I’ve got this subwoofer installed on a ported box. The problem is that the low frequencies bass is not hitting hard...to make a difference, I will give 2 different songs: Chase & Status - NRG ft. Novelist and Shahmen - Mark; NRG’s bass is really heavy hitting but Mark’s bass is really quieter and this song is not the only one that plays quieter, there are more...ex: Young Jeezy - Put on and Akon - I wanna love you; the bass is quiet, looking like it is a 250w RMS subwoofer...really annoying. LPF from HU is turned off, I’m using the amp’s LPF maxed at 200Hz (MTX XThunder X1000D) Subsonic filter is cranked a little bit, not much at all. It could be a damaged subwoofer or bad enclosure? I will write here the enclosure specs. Link to comment Share on other sites More sharing options...
Joe X Posted October 5, 2018 Report Share Posted October 5, 2018 A sketch of the box with dimensions would be best, pictures of your setup as well if possible. Link to comment Share on other sites More sharing options...
AlexanderLeet Posted October 5, 2018 Author Report Share Posted October 5, 2018 I’ve got photos, the guy who made it told me it is ported at 37Hz and the dimensions are the following: width - 28.7 / height - 13.3 / depth - 18.2; port looks waaay to bigger, right? https://m.imgur.com/a/1pEtb5V https://imgur.com/a/GaVwxk6 Link to comment Share on other sites More sharing options...
slowfkncar Posted October 5, 2018 Report Share Posted October 5, 2018 Port does look pretty big for that net volume, whats the port width? Link to comment Share on other sites More sharing options...
Joe X Posted October 5, 2018 Report Share Posted October 5, 2018 Don't have the port dimensions but if the guy says it's tuned to 37Hz then let's say he is right, that tuning is not ideal for Jeezy stuff and such at least on a regular size vehicle, 32Hz would be much more adequate, such large port area makes hard a lower tuning and increases box size, I would recommend building a different box, it would be best if you post what's your vehicle but about 30-32Hz would be adequate for your application. Link to comment Share on other sites More sharing options...
AlexanderLeet Posted October 5, 2018 Author Report Share Posted October 5, 2018 Port width is 4.7”, I’m from Europe (Romania) so I have a Ford Focus 2 sedan (I uploaded a pic). https://imgur.com/a/E514oLA I don’t know if I measured properly but I will write down in inches, so: Width - 4.7” / height - 12” / depth - 17.5” https://imgur.com/a/Rs4Zgpk So a bigger enclosure with a smaller port will do it? Link to comment Share on other sites More sharing options...
Joe X Posted October 5, 2018 Report Share Posted October 5, 2018 So here's something I'm sure will get you better results, box dimensions are similar to those of your current box but you need to check. Power: to sub rated, amp subsonic filter to 26Hz, minimum port clearance 8 cm, figure is just an assembly guide: NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside. Link to comment Share on other sites More sharing options...
AlexanderLeet Posted October 5, 2018 Author Report Share Posted October 5, 2018 Thank you, mate! I will try this enclosure. Hope it’ll do it. One question: low freq. bass takes much more voltage/amperage? Cause when lows are hitting my headlights are dimming...so it means I don’t have enough power. I planned to get another battery anyway so I hope it will do the trick... Link to comment Share on other sites More sharing options...
ckeeler11 Posted October 5, 2018 Report Share Posted October 5, 2018 Yes lower frequencies take more power for the same volume. I would recommend a deep cycle battery and also possibly an alternator. The alternator is what is powering your vehicle when the car is running. Link to comment Share on other sites More sharing options...
slowfkncar Posted October 5, 2018 Report Share Posted October 5, 2018 16 hours ago, AlexanderLeet said: Port width is 4.7”, I’m from Europe (Romania) so I have a Ford Focus 2 sedan (I uploaded a pic). https://imgur.com/a/E514oLA I don’t know if I measured properly but I will write down in inches, so: Width - 4.7” / height - 12” / depth - 17.5” https://imgur.com/a/Rs4Zgpk So a bigger enclosure with a smaller port will do it? that box is tuned in the 50's with a shit load of port area, stay away from that guy! You should be happy with the design joe posted. Link to comment Share on other sites More sharing options...
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