adding the fuse to mine had a much bigger impact on the sub than it did on loudness - though there was an increase in available loudness as well. As I mentioned in an earlier post, I had just done some upgrades to my sound system and without the fuse the bass was almost non-existent. I thought the lockpick had screwed something up or I had wired it wrong. Put the fuse in, and everything sounds as it should. To answer an earlier post - I used a fuse because that's what I had laying around and I am impatient and wanted the problem solved now!
Revive! Finally got around to this today. I just came inside and to be honest it wasn't that dramatic. I was alone and couldn't tell from sticking my head in the back. I would plug it in and listen. Unplug and listen. From the back it almost seemed like mine was louder when the cable wasn't jumped. Maybe the highs are raised when hard top is off to compensate for the wind and road noise. Bass turns down to avoid blown speakers. Wires jumped I noticed a drop in highs and a raise in bass. I'm not sure and would need someone sitting up front to be able to tell and a proper sound check song with consistent bass and highs. Conclusion: Hard top unplugged seems to increase the highs and decrease bass. Hard top on or wires jumped decreased highs with an increase in bass. Songs used for testing were arctic monkeys "do I wanna know" and pitbull "wild wild love". Both heavy bass. Bass was set to zero. If anyone else tries this let us know what happens
2010 JKU with infinity sub and stock upgraded stereo. Not one mod done to stereo
OF4WD member #7523. Durham 4x4 member.
I disagree... There is a significant change in volume not just bass on my 2013 Rubi with the better (non-LED) display. I think it has Alpine speakers also. Standing three feet behind the jeep I had my wife pull the jumper and put it back in. Maybe it varies by Model?