Big Speaker Sound... Without the Big Speaker Communication and entertainment technology is rapidly converging. Soon, there will be on-demand digital video and multi-channel audio at the touch of a button. Whether itâs delivered via satellite, cable, high speed computer modem or some as yet unimagined transport, one thing is certain: youâre going to need speakers to hear it. And the more advanced these technologies become, as more channels are added to the âmulti-channelâ matrix, the more speakers youâre going to need. The RM6700 is a case study in convergent technologies. RM6700 Satellites and Center Channel Speakers have a patented Polk technology built in: they are the first compact home theater speakers to feature Power Port bass venting. This is the same technology used in full-sized Polk Audio speakers; it improves lower end response and the all-important sub/sat blending, taking the RM6700 beyond the performance realm of any other sub/sat system. Team the RM6700 5-Pack with the PSW Series Subwoofer that best suits your bass needs and this system really delivers. This new Power Ported design reveals midrange that's smooth, with no midrange "hole" in the frequencies between the sats and the sub, and male vocals that are rich and full -- not thin and weak like other sub/sat systems!