Yamaha NS-5290 2-Way Bookshelf Speakers (Pair) Frequency Response - 60Hz to 20kHz Sensitivity - 90dB/W/M The NS-9250 speakers are rated at 8 ohms nominal, and are built to handle 30 Watts continuous power or up to 60 Watts peak power The speakers are home theater shielded, so they won't magnetically distort your television picture Finish - Black