QBSTA 900W Peak (300W RMS) 11" Spare Tire Powered Subwoofer System with Remote Bass Knob

Absolutely love the NVX spare tire sub. The sound is crisp, clean, and hits way harder than I expected while still sounding tight and controlled. Perfect upgrade without giving up cargo space. I added sound deadening mat to the entire tire well during install, which made it feel even more solid and helped cut down on any vibration or resonance.

Only issue I ran into was the center mounting bolt being a little too long — I had to cut about an inch off for it to seat properly. Once that was done, everything fit great.

Shipping was fast, packaging was excellent, and the included wiring kit was honestly a huge bonus. It was cheaper getting this complete package than trying to piece together a separate amp kit myself. Overall, extremely impressed with the quality for the price. Highly recommend.

Have only had it installed for about a week and a half but I’m thoroughly impressed with it. Fits in the spare tire of my 2017 VW gti and just barely touches the floorboard if you put it on the lowest level. My car did not have the Fender stereo so there was absolutely no bass from the door speakers. This sub will rattle the glass and vibrate the rearview mirror if you want it to You do need to cut about half off the bottom mounting adapter it comes with for Audi/VW so that the sub sits flush against the spare tire.

Surprising powerful and solid bass. Easy install

As good or better than expected. Well worth the money. Not the tightest bass for sure, but for a setup like this, it's great.

It definitely hits way above its class. I wasn't expecting so much bass out of a spare tire subwoofer.