SE Electronics Reflexion Filter XYour home studio acoustic solution Making a home studio is tough. Most rooms and spaces do not have acoustic dampening required for optimal sound and your recordings can often have background ambience and unwanted noise. This is where the SE RF XRB shines. Designed to sit on a mic stand, the padding material smooths the sound that the mic is picking up, creating a similar effect to that of a sound booth. Once you have your good, dry sound on your