The PMC Loudspeakers IB1S-C Center Channel Studio Monitor features wide dispersion soft domed fabric mid and high frequency units and the PMC 10" carbon fibre and Nomex™ flat piston low frequency driver. This flat patented driver increases dynamic handling and eliminates distortion that may occur due to cone break up. The IB1S-C's tweeter has been placed in the center of the cabinet so that the monitor can be placed horizontal as a center channel surround sound speaker.

Commonly seen in Mastering, Broadcast and Post Production in either stereo or surround when partnered with its dedicated center channel and SB100 sub bass system. Its huge popularity in Hollywood film scoring and postproduction is assisted by the option of ‘Film filters’. This gives 2 positions of HF roll off: 1.5dB and 3dB per Oct and Flat position.