Enjoy excellent music with the Proficient W690 speaker that has a nominal power handling capacity of 150 Watt RMS. This Proficient indoor stereo speaker delivers high performance music, boasting a frequency response of 32 Hz to 22 kHz. With a sensitivity of 92 dB, this Proficient speaker renders high pitch bass performance. Enjoy balanced music throughout your room with this Proficient indoor stereo speaker which has an impedance of 8 ohms. The built-in woofer of this Proficient speaker is made of Kevlar, a material that makes it light, strong and portable. With dimensions of 8.19 x 3.13 x 12.25 inches, the compact Proficient W690 speaker is perfect for any room size.