This is a great 9.2-Channel A/V Receiver in excellent working condition. Sale includes the following:- TX-RZ830 Receiver- Remote- Calibration Microphone- A/C Cable.Here are some details about the system:Enjoy UHD, HDR, and 3D support via HDMI with the Onkyo TX-RZ830 9.2-Channel Network A/V Receiver. It produces up to 120W of power per channel at 8 Ohms for room-filling sound. AccuEQ Advance sound calibration allows you to tailor the sound to your room's specific acoustics. Built-in Bluetooth connectivity lets you listen to music wirelessly from your favorite Bluetooth-capable devices, while built-in Wi-Fi connectivity provides access to your Spotify, TIDAL, and other online services. Chromecast built-in enables the receiver to be controlled with your voice with your Google Assistant-enabled device. The TX-RZ830 is equipped with seven HDMI inputs and two HDMI outputs. One of the HDMI outputs supports ARC for the reproduction of TV-based audio, such as your TV's built-in apps.Note:Access to certain Internet-based content may require a subscription to a service. Not all services are available in all areas.THX Certified Select Theater-Reference AudioTHX Certified Select virtually guarantees theater-reference sound in your home. To gain certification, amplifiers must pass bench tests covering every aspect of performance. THX Certified Select components are designed to suit rooms where the screen-to-seat distance is about 10' and volume 2000 cubic feet.Dynamic Audio Amplification (DAA)Dynamic Audio Amplification places less emphasis on lab measurements and more on how the sound feels in real life. High-current drive and fine-tuning help deliver natural transient response, the key to lifelike sound. This reserve of power is designed to arrive instantly when action happens on the screen, which helps to create a more exciting movie experience. Accuracy and control are maintained with the transformer, capacitors, aluminum heat sink, non-phase-shift amp circuitry, and discrete output transistors. VLSC (Vector Linear Shaping Circuitry) digital noise filtering for the front L/R channels helps provide enhanced fidelity.Dolby Atmos and DTS:X at up to 7.2.4 ChannelsHear Dolby Atmos and DTS:X soundtracks through 7.2.2 or 5.2.4 channels. Connect an external power amp via the 11.2-channel pre-outs for even more expansive 7.2.4-channel playback. Enjoy virtually seamless front-to-back, side-to-side, and floor-to-ceiling coverage with in-ceiling speakers and floor-standing speakers. Individual sounds aren't tied to channels and seem to move around you.Dolby & DTS Solutions for 3D SoundDTS Neural:X technology and Dolby Surround are designed to find spatial cues in legacy soundtracks and upmix them for playback through speaker systems with height channels. Since these decoding options are cross-compatible with other sound formats from Dolby and DTS, you can enjoy spatially realistic sound from your existing DVD and Blu-ray library, or via a movie streaming service.Chromecast built-in Works with the Google AssistantStream music from your compatible smartphone, laptop, or computer to the receiver. Control playback with Chromecast-enabled apps from your iOS or Android phone or tablet, Mac or Windows computer, or Chromebook. If you have a device with the Google Assistant built-in, you can control music on the TX-RZ830 by voice.Ready for DTS Play-Fi Multi-Room Audio TechnologyDTS Play-Fi technology allows you to enjoy music from your online services, media server, and mobile device to any number of compatible products using the Onkyo Music Control app. DTS Play-Fi technology can synchronize music in every room, and family members can use their own device to listen in a room or group of rooms. Multi-room functionality requires additional equipment.FlareConnect Wireless Multi-Room AudioFlareConnect shares audio from network and external audio input sources between compatible components. Enjoy simple multi-room playback of records, CDs, network music services, and more with supported components and speaker systems. Music selection, speaker grouping, and playback management across the home are built into the Onkyo Controller app.Powered Sound in Three ZonesWith a 5.2-channel layout in Zone 1, the remaining four channels can drive speakers in Zone 2 and Zone 3. Along with analog distribution, dedicated DACs enable digital sources (except HDMI and S/PDIF audio in Zone 3) to be synced across rooms simultaneously, or a unique source to be played in every zone at once. Zone 2 and Zone 3 pre-/line-level outputs are well suited for sharing sources to an existing hi-fi system.AccuEQ Advance Sound CalibrationAccuEQ sets speaker distance, SP level, and crossover. In addition, AccuEQ Advance employs multipoint measurement to remove standing waves from your listening space, which compromise audio quality and bass response. The technology also detects and compensates for background noise, such as the hum from an HVAC, to help ensure accurate equalization.Wi-Fi and Bluetooth Wireless ConnectivityBuilt-in dual-band 5 / 2.4 GHz Wi-Fi helps provide network stability for streaming, the Onkyo Controller app, and multi-room audio. Bluetooth wireless technology is also on-board for simplified mobile or laptop connection.AirPlay, Streaming Services, and Internet Radio Built-InMusic lovers have easy access to their iTunes library. Find and stream music from your iPad, iPhone, Mac, and Windows computer over the Apple AirPlay wireless audio platform. Additionally, Amazon Music, Spotify, TIDAL, Deezer, Pandora, and TuneIn are all built into the system GUI, making selection easy using the Onkyo Controller app or the Onkyo Music Control app.HDR UHD, BT.2020, 4K/60 Hz, and HDCP 2.2 SupportThe receiver's HDMI inputs, Main Out, and Sub/Zone 2 out pass HDR10, HLG, and Dolby Vision formats through to compatible displays. These terminals support the BT.2020 4K video standard, 4K/60 Hz playback, and HDCP 2.2.Processing FeaturesAKM AK4458 384 kHz/32-bit multichannel DACPLL (Phase Locked Loop) jitter-cleaning technology for S/PDIF audio32-bit digital signal processing (DSP)Engineered for pristine reproduction of audio-only sources in Pure Audio ModeListening modes for gaming: Rock, Sports, Action, and RPGTheater-Dimensional virtual surround-sound functionDirect Mode for audio reproduction close to original source qualityIndependent tone controls (bass/treble) for all channelsConnection FeaturesPowered USB terminal (5 V, 1 A) for audio playbackMM phono input and equalizer for turntable connectionBanana-plug-compatible speaker postsDetachable power cableAdvanced FeaturesHi-Res Audio playback including DSD 11.2 / 5.6 MHz / 2.8 MHz, 192 kHz / 24-bit FLAC, WAV (RIFF), AIFF, ALAC, and Dolby TrueHDAdvanced Music Optimizer helps enhance compressed digital audio quality, including for BluetoothSupports front L/R bi-amping480i to 480p de-interlacing via HDMI for legacy video formatsAdditional FeaturesCrossover adjustment for each channel (40/50/60/70/80/90/100/120/150/180/200 Hz)A/V Sync Control (up to 500 ms in 5 ms steps at 48 kHz)Graphical User Interface with overlaid On-Screen Display via HDMIQuick Setup Guide via GUIEconomical HDMI pass-through and Network Standby functions3-mode display dimmer (Normal/Dim/Dimmer)Optional rack-mounting kit availableOnkyo RZ Series SpecsMain UnitChannels9.2Power Output per Channel120 W per channel (8 Ohms, 20 Hz to 20 kHz, 0.08% THD, 2-channels driven, FTC) 250 W per channel (6 Ohms, 1 kHz, 10% THD, 1-channel driven)Dynamic Power per Channel130 W (8 Ohms, front) 220 W (4 Ohms, front) 250 W (3 Ohms, front)THD & Noise0.08% (20 Hz to 20 kHz, half power)Input Sensitivity and Impedance200 mV/47 kOhms (Line) 3.5 mV/47 kOhms (Phono MM)RCA Output Level and ImpedanceSubwoofer Pre-Out, Rated: 1.0 V/470 Ohms Zone Pre-Out, Rated: 1 V/2.3 kOhms Zone Pre-/Line-Out, Rated: 1 V/200 mV/470 OhmsFrequency Response5 Hz to 100 kHz / +1 dB, -3 dB (Direct Mode)Tone ControlBass: ±10 dB, 20 Hz Treble: ±10 dB, 20 kHzSignal-to-Noise Ratio106 dB (line, IHF-A) 80 dB (phono, IHF-A)Speaker Impedance4 to 16 OhmsProcessingDolbyDolby Atmos, Dolby TrueHD, Dolby SurroundDTSDTS:X, DTS-HD Master Audio, DTS Neural:XVideo SectionInput Sensitivity/Output Level and ImpedanceComponent Y: 1.0 Vp-p/75 Ohms Component B/R: 0.7 Vp-p/75 Ohms Composite: 1.0 Vp-p/75 OhmsTuner SectionTuning Frequency RangeFM: 87.5 to 107.9 MHz AM: 530 to 1710 kHzFM/AM Preset Memory40 stationsConnectivityWi-FiDual-band 2.4 / 5 GHzBluetoothVersion: 4.1 + LE Profiles: A2DP v1.2, AVRCP v1.3AirPlayYesInputs7 x HDMI (1 front) 2 x RCA component video 2 x RCA composite video 2 x optical TOSLINK 1 x digital coaxial 6 x stereo RCA 1 x stereo RCA phono with ground screwOutputs2 x HDMI 1 x stereo RCA zone 2 pre-/line-out 1 x stereo RCA zone 3 / height 2 pre-/line-out 2 x subwoofer pre-out 1 x 1/4" / 6.35 mm headphone (front)Other Interfaces1 x RJ45 Ethernet LAN 1 x 1/8" / 3.5 mm setup mic in (front) 1 x 1/8" / 3.5 mm IR in 1 x RS-232 in 1 x 1/8" / 3.5 mm 12 V trigger out 1 x AM antenna 1 x FM antenna 1 x USB 5 V / 1 ASpeaker Connectors11 x binding post pairsGeneralPower Requirements120 VAC, 60 HzPower ConsumptionTypical: 870 W On, No Sound: 70 W Standby: 0.15 WDimensions17.1 x 7.9 x 15.7" (435 x 201.5 x 398 mm)Weight30.9 lb (14 kg)