Rev33 Review

To say that Rev33 is a "filter," although technically true, seems to us at WLM to be a dramatic understatement, as the little device is one of the best IEM accessories we’ve ever come across! In short, Rev33 is a passive device that sits inline between your audio source and headphones that reduces unwanted noise and distortion in your IEMs, allowing the drivers in your IEM to give you the ideal listening experience no matter what source you’re using.