ONKYO HTX-22HDX. Optical disc player type: Not included. RMS rated power: 175 W, Audio output channels: 5.1, Audio decoders: Dolby Digital Plus, Dolby TrueHD, DTS-HD, DTS-HD Master Audio. Front speakers RMS power: 25 W, Front speaker frequency range: 70 - 20000 Hz, Front speaker crossover frequency: 1 Hz. Subwoofer RMS power: 50 W, Subwoofer frequency range: 35 - 200 Hz, Subwoofer impedance: 3 Ом. HDMI version: 1.4a