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.75" Silk-dome tweeters
3.25" Composite Injection-molded cones with dynamic balance driver technology
Power port
Total frequency response: 90 Hz → 24 kHz
Time lens technology-the acoustic centers of the tweeter and mid-bass driver are located in the same plane for superior imaging
Power port a patented Polk technology, extends the low frequency mid-bass driver response as it decreases air turbulence
3/4" Silk dome tweeters for crisp, clear imaging and smooth response that's never tiring
3 1/4" Composite Injection molded cones with dynamic balance driver technology
Combination keyhole slot & 1/4" X 20 threaded insert fits all aftermarket ceiling and wall brackets for ultimate flexibility
Eliminates "port noise" And bass output losses up to 3 dB
Time Lens Technology-The acoustic centers of the tweeter and mid-bass driver are located in the same plane for superior imaging
Big Speaker Sound Without The Big Speaker Whether you're looking for your first home theater sub/sat system or want to upgrade to more performance, you're in for a big surprise in a small, compact package from Polk Audio. The predecessor to Blackstone TL, our RM series, was always about "Big Speaker Sound Without The Big Speaker." Blackstone TL represents a significant leap forward, delivering an astonishing home theater performance never before heard in compact loudspeakers.