In this video I show you how to adjust your port tuning for a Dual Subwoofer setup. Going from 1 sub up to 2 subs is very easy and it requires a few simple adjustments Exclusive Discount Codes for DIY Audio Guy fans: 10% off at NVX.com (https://nvx.com/?ref=n_3Nr6MdZIar-d) with the code DIYAUDIO10 10% off of Custom Speaker Pods (https://customspeakerpods.com/) with the code DIYAG Support DIY audio content by shopping with these affiliates: Amazon: https://www.amazon.com/shop/diyaudioguy Shop for Car Audio at NVX: https://nvx.com/?ref=n_3Nr6MdZIar-d Shop for Basshead Gear at Down4Sound: https://lddy.no/1065t Shop for Car and Home Audio at Crutchfield: https://howl.me/cg9bCOKLoK7 Shop for Car Audio at Sonic Electronix: https://bit.ly/3bazPBs Shop for speakers at Parts Express: https://parts-express.sjv.io/0J6eYE Shop for whole-house auido at Arylic: https://www.arylic.com/?aff=79 DIY Audio Merch: null Chapters: 0:00 One sub in a small box vs two subs in a large box. 1:15 One sub in a large box vs two subs in a large box. 1:39 Port noise with an undersized port. 2:05 Larger Port to accommodate two subs. 3:00 What happens if I use two ports? Facebook: https://www.facebook.com/DIY-Audio-Guy-111428060245602/ Instagram: https://www.instagram.com/diyaudioguy/ Blog: www.diysubwoofer.net Twitter: https://twitter.com/DIYAudioGuy1