In the lab
Frequency response (at 2 meters)
front left/right: 55 Hz to 20 kHz ±4.7 dB
center: 81 Hz to 20 kHz ±3.7 dB
surround: 82 Hz to 20 kHz ±3.2 dB
subwoofer: 36 to 79 Hz ±2.3 dB
Sensitivity (SPL at 1 meter with 2.8 volts of pink-noise input)
front left/right: 91 dB
center: 92 dB
surround: 89 dB