XBBR2 X-Series 2-Channel Bass Restoration Processor and Line Output Converter with Impedance Matching and Remote Level Control

I highly recommend this product. It’s very easy to install—I connected it to one channel on my stock radio, and it works perfectly. While it doesn’t come with cables, I suggest purchasing a 2-amp ANL fuse power cable. It also doesn’t even require a remote wire, as it powers on with the radio. A great feature is the included controller. This device is excellent for restoring bass in your music, functioning similarly to the Epicenter Micro at a cheaper price.

Very well worth the money. I used an integration harness for the Bose stock stereo and it wasn't thumping like I knew it would. I tried everything, but not enough power. Installed this and it increased the voltage from the harness, and I had to turn my NVX 1700d to less than half gain and bass boost off. Now it pushes my 2 sundown audio e12v3 subs like crazy. Good investment

Definitely recommend for those keeping a factory radio in vehicle. This allows you to fine time the sound of your sub.

Switches broke and one jammed after the first time I switched them. Does add bass but the sound quality is really bad and distorted.

Installed an NVX XBBR2 to battle the bass roll-off from the stock Bose system in my '17 Cadillac CTS. I initially installed an NVX VAC10001 amp to power a Kicker TRTP 12. Amp was descent but the roll-off was very noticeable, at least it was to me. The XBBR2 had good reviews and not bad price so I decided this was my choice. Installation was pretty straight forward, had the XBBR2 replace an installed LOC (Line Out Converter). Once battery was reconnected, XBBR2 and amp powered on correctly. While tuning the XBBR2, the 3 fuses in the amp blew. I disconnected the battery and replaced the fuses, double checked the wiring - which was good - and continued to reconnect the battery. The amp popped a couple of times but the power to both the amp and the XBBr2 remained on. Both power lights remained on. To be on the safe side I reconnected the battery again and checked the fuses in the amp. The fuses were not blown, still good so I reconnected the battery and continued. Began tuning the XBBR2 again: tuned the gain to below clipping. Went to set the gain on the amp to match gain and the amp would not make any adjustments. While inspecting the amp I noticed light whisp of smoke and a faint odor. The NVX amp was descent (R.I.P.) but seemed to be pretty sensitive when adjusting at the unit. The XBBr2 didn't act compatible with its sister equipment. I've never had this happen so wasn't sure about it. The next day I attempted to contact NVX support directly through their web site. I was told that tech support was not available by phone and required an email and to wait for them to contact me. Not a good business practice. Would not recommend after this experience.