The Studiospares RED 100 provides a realistic answer to the problems of unwanted sound entering via the rear of the microphone. The heart of the answer lies in the construction of the shielding material. Sound isolation rooms use the principle that sound waves agitate a material (the walls) and dissipate that energy into an acoustically absorbant material similar to Rockwool. RED 100 applies that principle by surrounding much of the microphone with a wall. In the case of RED 100 the wall consists of a complex sandwich construction of five differing materials. The results are astonishing, providing better detail and a more accurate sound. To save storage space and provide more control over the captured sound the sides can be folded in and out. The RED 100 is designed to be mounted on a 5/8” thread. Round base stands are likely to topple forward. The position of the microphone relative to the filter can be varied back and forth.