Review on Enhanced Noise Filter and High-Level to RCA Converter by BOSS Audio Systems for Optimal Car Audio System Performance by Bilal Cartwright

I was a little skeptical about this product given the price, but it worked very well and significantly reduced the ground loop noise coming from the RCA signal on the PC. for the active speaker setting. There is still a noise that feels very close to the speaker, but it has gone from something that bothers me constantly to a noise I can only hear when listening very close to the speaker. AKA this product solved my problem cheaply and effectively. In addition, judging by the picture, the device is lightweight and can be removed from the floor with a conventional cable management system. For recording, this works great with both home AV and car setups, although this product was only designed for a specific type. a problem that may not be your problem. Also, you may need to use more than one if you have multiple analog connections that create a ground loop.