Harman/Kardon BDS 470. Optical disc player type: Blu-Ray player, Disc types supported: BD-R, CD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW, Playback disc formats: Blu-Ray video, CD audio, CD video, DVD video. Video formats supported: DIVX, Analog signal format system: NTSC, PAL. Audio output channels: 5.1, Audio decoders: Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS-HD, Signal-to-Noise Ratio (SNR): 90 dB. Supported radio bands: FM, FM band range: 87.5 - 108 MHz. Satellite speakers RMS power: 150 W, Satellite speaker frequency range: 45 - 20000 Hz, Satellite speaker impedance: 8 Ом