Philips Soundbar speaker HTL2100W/12, 1.0 channels, 40 W, Dolby Digital, 20 W, 4 Ω, 30% Philips Soundbar speaker HTL2100W/12. Audio output channels: 1.0 channels, RMS rated power: 40 W, Audio decoders: Dolby Digital. Soundbar speaker RMS power: 20 W, Impedance: 4 Ω, Total Harmonic Distortion (THD): 30%. Subwoofer impedance: 4 Ω, Subwoofer location: Built-in. Product colour: White. Connectivity technology: Wired