Designed as a modular and scalable monitoring solution for broadcast and post production applications, the single LSR705i 5" Master Reference Monitor from JBL can be combined with other 7 series monitors and JBL's Master Reference Monitor to create a range of systems depending on your needs. Its 5" woofer is capable of reproducing frequencies down to 39 Hz, while its high-frequency driver responds up to 36 kHz. Thanks to the 7 series' centralized amplification and processing, you do not need a power source at each location for stereo or surround set ups.