9-channel powerful Surround sound * 140W per Channel (8 ohms, 20 Hz-20 kHz, 0; 09 % THD, 2 ch driven) * HD Audio format decoding - Dolby TrueHD and DTS-HD Master Audio; Dolby Digital Plus and DTS-HD * Symmetrical Power amplifier layout * Heat sink with anti-vibration and anti-thermal properties