AngeliaSky Universal Car Audio Amplifier RCA Amplifier Audio Adjuster Gain Level Bass Boost Volume Control Knob for Car, Motorcycle, Speakers, Home Theater (1 Pack)

There is nothing "wrong" with this knob. My only complaint is it has resistance half way through the knob which is annoying. I ended up getting another knob that looked similar but didn't have that. So if it's not an issue then this knob will be fine for you.

It works. Just doesn’t boost anything. If you’re looking to get more gain out of a signal, don’t use this. If you’re looking to suppress volume, this is fine.

Worked great

The only complaint I have is after about 3-4 months of being installed the sticker face came off, but really nothing to affect functionality

Good product

Does not work smooth for me on home stereo. its either lots of volume or none. probably works in cars.

Great product and super easy to install.

Its amazing

I recieved my volume knob... it works great... it does what I wanted it for...

At the time I used it yes this product was perfect