Stereophile Recommended Component http://www.stereophile.com/standloudspeakers/508para/#IVQHmLds2xrdwApU.97 Description: Two-way, reflex-loaded, dynamic loudspeaker. Drive-units: 1" (25mm) PAL pure-aluminum dome tweeter, 6.7" (170mm) MLP mica/polymer-cone woofer. Crossover: third-order, quasi-Butterworth at 1.5kHz. Frequency range: 54Hz-22kHz on-axis. Sensitivity: 89dB/2.83V/m. Nominal impedance: 8 ohms. Dimensions: 14" by 8¼" by 11". Shipping weight: 40 lbs/pair. These critically acclaimed speakers were in Stereophile Magazine's list of recommended components for several years running. A quote from the Stereophile review: "the Studio/20 is, by a wide margin, the finest speaker under $1000/pair I've ever heard--and currently there's quite a bit of competition. I would happily own them as a reference. Congratulations to the Paradigm design team, who have established a new benchmark for speaker performance at this price point" In "Like New" condition. Not a single scratch on them.