NVX XVRC2 Universal Bass Knob Level Controller with Built-in Digital Voltmeter, Blue LED Display, Remote Gain Control and Amplifier On/Off Switch

Cons: as other reviews have stated the wires for positive and negative remote in remote out are extremely small. It is a little bit of a challenge getting it connected other than that.Pros. Besides the small gauge wire it’s fairly simple to install and it works great. My favorite part is I can remotely turn off my amp and my subwoofer when I don’t need them voltage meter works well. The only slight thing I would say about it is at night it is very bright but a small piece of tint over the screen will fix that.

The rca signal works great and voltage meter is a nice feature

Really liked it

Was bought for my brother system an he likes it...

Works perfectly. No complaints. Pretty accurate

I like the item, but it was giving a lot of negative feedback through my subwoofer.i tried several different attempts to fix the problem but the noise continued. So I just unhooked it and took it out. And I put a scratch on the side of it, so I didn’t try to send it back. Guess I have to keep it now. Maybe I’ll sell it one day.

Cool bit of tech to upgrade your amp and speakers. You can completely turn your amp off if you want and adjust bass level at a turn of the knob. Cool extra feature to see your volt level on your battery or at least the charge to it from your alt. I love it. Easy level control at a cheap price. Bright display that's easy to read in daylight.

Well here's my story. I'll accept fault for trusting that this nvx bass remote was in good working order prior to modifying my dash panel for fitment. That's on me.However, the unit I received is off by over 2 volts negative display even after maxing out the potentiometer. I've compared it with 4 other meters to be sure, including an oscilloscope (photos posted). Secondly, the unit display is in white and not the blue as advertised.The deal breaker for me is the sellers unwillingness to remedy the problem that is no fault of my own (they should have tested the unit before shipping), do my only option according to their reply posted below is for me to remove my dash again, rewire things if I want to continue using my system while waiting another week or so for a replacement.Completely unacceptable.Just thought others should know what to expect if you receive a defective unit. I will now purchase something else from somewhere else entirely to avoid having to double the time and effort (and cost albeit temporary) on my end to replace this.(Reply from seller) > Yes, we do apologize. The replacement program on amazon is coordinated entirely by Amazon. We do apologize but we have no say in the process.The only real option to avoid the wait would be to order a new bass knob and when that is delivered send in the defective unit for a refund.