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  • POLK - PSW125
    POLK - PSW125

    เป็นกษัตริย์ของซีรีส์ PSW...

    10,900 ฿ 13,900 ฿





New product

  • Experience IMAX® Enhanced
  • Dynamic Audio Amplification – RZ Series Build
  • New upgrades reduce noise and boost power
  • Works with Sonos
  • Connections for custom installation
  • Supports eARC audio transmission

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65,900 ฿

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  • ONKYO TX-RZ840 9.2-Channel Network A/V Receiver

    Immense power for unparalleled speaker control

    A glance at the TX-RZ840’s imposing front panel reveals a component built for one purpose: making your smile wider as the volume goes higher. Its thick chassis is loaded with custom parts tested and tuned to THX® Certified Select™ reference standards, handling massive current flows for sound you feel emotionally and physically. Beyond 3D surround supporting IMAX® Enhanced*1 content up to 11.2 channels, and a finessed touch that breathes life into stereo music, the receiver forms a hub for house-wide entertainment with Next-Generation Network Audio integrating AirPlay 2, Works with Sonos, Chromecast built-in*2, and more over 802.11ac Wi-Fi®*3. Three-zone powered D/A audio distribution is easily managed from your smartphone. With state-of-the art connectivity and custom-installation interfaces included, it’s the TX-RZ840’s visceral presence you’ll find most difficult to resist. 


    • 215 W/Ch THX® Certified Select™ RZ Series DAA system
    • Ultra-wide 5 Hz–100 kHz frequency response
    • Works with Sonos, Chromecast built-in*1, AirPlay 2, DTS Play-Fi®, FlareConnect™*2, Spotify®, Amazon Music, TIDAL, Deezer, TuneIn*3
    • Supports 5.2.4-ch Dolby Atmos® and DTS:X® playback
    • 11.2-ch pre-outs and processing for 7.2.4 layouts
    • Dolby Atmos Height Virtualizer*4
    • IMAX® Enhanced*4 certified for IMAX® digital re-masters
    • HDMI® Main output with eARC, HDMI Sub/Zone 2 Out*5
    • Refined HDMI grounds, SoC board, and power amps
    • Quad-core SoC supports 802.11ac (2x2 MIMO) Wi-Fi®*6
    • Zone 2 and Zone 3 speaker outputs
    • Zone 2 and Zone 3 DACs for D/A audio in three rooms
    • Zone 2/Zone B and Zone 3 line-outs share D/A audio
    • Stereo Assign Mode supports Height-channel playback
    • DSP-based Vocal Enhancer improves dialog audibility
    • OSD features media input/output data display function
    • HDMI supports 4K/60p, 4K HDR, BT.2020, HDCP 2.2
    • AccuEQ Advance 9-point calibration with AccuReflex™
    • Volume memory-presets for A/V inputs via front panel
    • IP control, RS-232C, 12 V trigger output, and IR input


    • 215 W/Ch (6 Ω, 1 kHz, 10% THD, 1 channel driven), 180 W/Ch (6 Ω, 1 kHz, 1% THD, 1 channel driven, IEC)
    • Certified for IMAX Enhanced and THX Certified Select
    • Dynamic Audio Amplification with RZ Series Build
    • Ultra-wide 5 Hz–100 kHz frequency response
    • Custom-built High-Current Low-Noise Power Transformer
    • Custom 15,000 μF high-current smoothing capacitors
    • Non-phase-shift amp topology with discrete output stage
    • Extruded anti-resonant aluminum heat-sink with black anodized paint
    • Strengthened power-supply line for high-current dynamics
    • Refined HDMI grounds and short signal-paths reduce noise
    • Isolated SoC board reduces interference
    • High current capability for 4-ohm speaker drive
    • AKM (AK4458) 384 kHz/32-bit multichannel D/A conversion
    • VLSC™ (Vector Linear Shaping Circuitry) noise filtering (Front L/R)
    • PLL (Phase Locked Loop) anti-jitter technology for SPDIF audio
    • Pure Audio Mode and Direct Mode for source authentic expression
    • Independent tone controls (bass/treble) for all channels (Zone 3 excluded)


    • Supports HDCP 2.2, 4K/60p, HDR (Dolby Vision™, HDR10, HLG), BT.2020, 4:4:4 color sub-sampling, 24-bit color, 3D Video, ARC (Audio Return Channel), DeepColor™, x.v.Color, and LipSync via HDMI
    • Dolby Atmos, DTS:X, Dolby® TrueHD, and DTS-HD Master Audio®
    • Dolby Atmos Height Virtualizer 3D audio processing
    • Dolby Surround® and DTS® Neural:X upmixing technology
    • IMAX Mode for IMAX Enhanced content
    • THX® listening modes for movies, music, and games
    • Sound optimization for games (Rock, Sports, Action, and RPG)
    • Theater-Dimensional virtual surround-sound function


    • Next-Generation Network Audio supports multi-room streaming and Onkyo Controller*7
    • Works with Sonos for the Sonos Home Sound System*8
    • Chromecast built-in and voice control*9 with the Google Assistant
    • AirPlay 2 multi-room audio and voice control*10 with Siri
    • DTS Play-Fi multi-room audio via Onkyo Music Control App*7
    • FlareConnect multi-zone audio with compatible components
    • Quad-core SoC supports high-speed 802.11ac (2x2 MIMO) Wi-Fi
    • Hi-Res Audio playback via network (DSD Direct 11.2 MHz*11; DSD 11.2 MHz/5.6 MHz/2.8 MHz*11 [PCM conversion]; FLAC, WAV [RIFF], AIFF, and ALAC to 192 kHz/24-bit*12)


    • 7 HDMI inputs (1 front), 2 outputs (Main [eARC], Sub/Zone 2)
    • 1 component video input (assignable)
    • 2 composite video inputs (assignable)
    • 2 digital audio inputs (optical and coaxial, assignable)
    • 6 analog RCA inputs (assignable)
    • 1 phono input with built-in low-noise MM equalizer for turntable
    • 3.5 mm setup mic input for AccuEQ Advance (front)
    • 6.35 mm headphone jack (front)
    • 11.2-channel pre-outs (analog RCA, variable)
    • Zone 2/Zone B and Zone 3 analog RCA line-level outputs
    • 9 screw-type speaker posts (including Zone 2)
    • Bi-directional Ethernet terminal for network and IP control
    • USB input (5 V/1 A) for audio playback (rear)
    • RS-232C serial port for remote control
    • IR (infrared) input for remote-control extenders
    • 12 V trigger output (Main, assignable, 100 mA)
    • AC socket for detachable IEC power cord


    • AccuEQ Advance 9-point calibration with AccuReflex
    • Bluetooth® wireless technology with Wake on Play Standby
    • Advanced Music Optimizer improves compressed audio playback
    • Vocal Enhancer DSP clarifies dialog via remote or front-panel controls
    • HDMI Main Out features eARC transmission of HQ audio from supported TVs to the A/V receiver
    • Aluminum front panel and door to conceal front-panel controls
    • Zone 2 and Zone 3 speaker outputs with Zone 2 and Zone 3 DACs play synced or unique D/A sources simultaneously (Zone 2 supports HDMI/SPDIF*13)
    • Zone 2 line-out mode connects audio systems for independent D/A playback (including HDMI/SPDIF*14) in two rooms
    • Zone B line-out mode supports wireless headphone transmitter connection for simultaneous playback of D/A audio in Main and Zone B*15
    • Zone 2 and Zone 3 line-outs support simultaneous output*13
    • Front-to-Height speaker-switching in Stereo Assign Mode for BGM
    • 1080p to 4K Super Resolution upscaling via HDMI
    • GUI with overlaid OSD via HDMI featuring media input/output display
    • Crossover 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)
    • Various efficient standby modes and HDMI pass-through
    • Optional rack-mounting kit (IRK-180-4C)
    • IP control for home automation, SmartGrid-ready
    • 3-Mode display dimmer (Normal/Dim/Dimmer)
    • 40 FM/AM random presets
    • Redesigned simple remote control


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  • Experience IMAX® Enhanced
  • Dynamic Audio Amplification – RZ Series Build
  • New upgrades reduce noise and boost power
  • Works with Sonos
  • Connections for custom installation
  • Supports eARC audio transmission

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