The sE Electronics Reflexion Filter Project Studio is a portable device for recording live sound sources with reduced room ambience. It is an advanced composite wall that is positioned behind any microphone by means of a variable position stand clamp assembly which ships with the product. The main function is to help obtain a ‘dry' vocal or instrument recording. This is especially useful in studios without proper acoustic treatment, but can also be used to help record takes in control rooms, where the performer also has to operate the recording device, or in rehearsal studios to reduce ambient noise.

The sE Electronics Project Studio RF uses the same basic design as the PRO version, omitting the multiple layers and acoustic boundaries replacing them with the same, patented, polyester acoustic board. The PS Reflexion Filter is lined with a high grade, high-density crystal foam with a unique curved ridge cut which performs far better than standard acoustic foam.