HEOS Drive HS2 An unique Class D 8 channel amplifier that features both Dolby Digital and Dolby Digital+ decoding with stereo down mixing. It is 60 watts per channel into each of the 8 channels with low impedance drive capability (4 ohms). Furthermore, you can bridged 1 or 2 stereo amp pairs for single channel high power output (130 watts), Each zone in this multi-room amplifier features a stereo pair of pre-amp outputs plus each zone can be configured for stereo or mixed mono output. In addition to that, the matrix switching system features 2 optical digital inputs, 2 coaxial digital inputs and 4 analog stereo inputs. Any of the outputs can be assigned to any zone, and every zone features a dedicated USB port for connection to an external USB drive. The Heos Drive is equipped to handle virtually any combination of speaker configurations. Due to the built-in DSP high pass/low pass filters, the Heos Drive can set any output to full range, subwoofer or satellite speaker modes, with adjustable crossover points. There are4-way banana plugsplusa 4 x12V trigger in the speaker. Due toitsquiet fan cooling from the chassis, it resulted in long term stability and operational reliability. Features Summary 8 Channels Class D digital amplification; 70W per channel with low distortion and high current 4 ohms stable and bridgeable to 4 x 130W Pre-amp/Subwoofer outputs for each zone High and Low Pass selectable filters to tune speakers/subs Maximum volume setting per area/zone Stream from Spotify, Deezer, Rdio, Tidal, Pandora, SoundCloud and TuneIn Stream music stored locally on a smartphone or tablet Four USB inputs, Two Optical and Two Coaxial digital inputs and Four Auxiliary 3.5 mm analog inputs Stream music from a home network (NAS drives, PC and Mac) Built-in dual band wireless 2.4 GHz & 5 GHz Ethernet jack for wired network connectivity Perfect for any speakers: outdoor, in-ceiling, floor standing, bookshelf Dual RJ-45 Ethernet LAN ports Stereo/Mono selectable output Only 2U high; removable rack ears included 3rd Party Controllable and open API for 2 way interfacing Dolby Digital/Dolby Digital+ downmixing to stereo Fan Cooled for use in enclosed spaces