Review on 🔇 Pyramid NS20: Advanced 15A RCA Noise Suppressor for Clean Audio Signals & Noise Elimination - Built-in Isolation Transformer, Ideal for Amplifiers & EQs, Easy Installation via RCA Jacks & Unique Noise Detection Circuit by Raden Maldonado

Pro: Eliminate noise. Cons: I got rid of most of the bass. I use this thing on a DJ controller. The USB line is not well insulated. I got a powered USB isolator and it worked great for a couple of weeks and then died. So I thought this transformer could be better... and well, it completely eliminated the noise. But the lack of bass for DJ purposes is a bit annoying. If you can handle loss of bass then this product may be perfect for you. Unfortunately, other people may want to explore other options.