Compare Polk Audio RM6750 Speaker System to Polk Audio RTi A7 Main / Stereo Speaker

The integrated Power Port Bass Vent designed right onto the back of the compact Satellite & Center Channel speakers-the same technology used in full-sized Polk Audio speakers-improves lower midrange response and all-important sub/sat blending, taking the RM6750 beyond the performance realm of any other sub/sat system in this price range. This integrated design reveals midrange with no hole in the frequencies between the sats and the sub, for male vocals that are rich and full-not thin and weak like other sub/sat systems. The RM6750 comes with its own subwoofer module, an 8 inch long throw driver and high current power amplifier for real ground-shaking bass thrills. Less

Innovative Design The RTi A7 features the latest generation of Dynamic Balance(R) polymer composite drivers for smooth wide-range response with low distortion. The RTi A7 uses multiple long-throw 7-inch woofers to combine the wide dynamic range benefits of a single larger woofer with the tight, punchy, accurate bass response of small woofers. Combined with PowerPort Plus, these multiple woofers deliver deep, high-impact bass with speed and accuracy. 1-inch Silk/Polymer Dome Tweeter delivers smooth response and better detail. PowerPort(R) bass venting for superior clean, low distortion bass that you can really feel.PowerPort vastly reduces chuffing or port noise and provides deeper, more powerful, lower distortion bass than could be realized with conventional ported or sealed designs of comparable size. Magnetic shielding for safe placement near video sources. Mylar bypass capacitors in the crossovers extend high frequency response and improve detail and transparency. Less