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SC-LX904

Pioneer SCLX904

Features

  • Direct Energy HD Amplifier
  • IMAX Enhanced*
  • MCACC Pro Auto Room Tuning
  • ESS 384 kHz/32-bit DAC

Quick Specs

  • Type: Audio Components

See More

 
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Direct Energy HD Amplifier

Continuously evolving throughout the years, Pioneer's Direct Energy HD Amp has now reached the 6th generation. New power coils are adopted for the ideal speaker drive, as well as new custom film capacitors co-developed with Shinyei Capacitor for the ultimate sound. The power supply and patterning has been developed through repeated tuning. Also, the entire transmission path from the pre stage to the power stage has been changed to balanced circuitry, to transmit noise-free high-quality signals to the power stage.

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IMAX Enhanced*

The VSX-LX504 is IMAX Enhanced*, certified to deliver the powerful sound just as intended by the filmmaker, and provide the immersive experience on your home theater.
* Enable with a future firmware update

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MCACC Pro Auto Room Tuning

MCACC Pro, the pinnacle of Pioneer's auto room tuning technology, analyzes the phase and group delay characteristics to precisely control phase differences between speakers. MCACC Pro corrects phase differences in all ranges and all channels, from phase difference in the original audio material to the sound emitted from the speakers. Required microphone included.

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ESS 384 kHz/32-bit DAC

Two 384 kHz/32-bit ESS DACs (ES9026PRO), same as the ones used for Pioneers PD-70AE SACD player, are used for all channels. With extremely precise D/A conversion and high S/N ratio, the DAC provides powerful sound full of rich details.

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Dolby Atmos

You can reproduce object-oriented sound in smooth, curving movements, or the realistic three-dimensional movement overhead by the top speakers.

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DTS:X

Can automatically adapt the audio to the existing channels and speaker system, no specific speaker layout is required.

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Full Band Phase Control

Pioneer's Phase Control technology effectively eliminates phase lag and significantly improves the multi-channel sound without any extra operation. Furthermore, The Full Band Phase Control technology focuses on the group delay in the speaker network filter, and adjusts the phase of each unit as well as the group delay for each speaker. Multi-range speakers gain the sound coherence of full-range speakers, while retaining the wide frequency range advantage. In an environment where the phase of all units and all channels are precisely controlled, a remarkably clear sound location with a surrounding feel is achieved. In combination with MCACC Pro, the ideal multi-channel reproduction environment can be created, which faithfully replicates object audio and the intention of the original content developer.

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PQFA Jitterless Sound Processing for Network/USB

With PQFA (Precision Quartz File-based Audio), clocks are available for each stage of input, digital signal processing, and D/A conversion, and the shorter path prevents jitter from occurring. Additionally, a high-precision clock IC (OSC) is used to realise D/A conversion with significantly less jitter.

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PQLS Jitterless Sound Transmission

With the precision quartz controller on the AV receiver, Precision Quartz Lock System (PQLS) eliminates distortion caused by timing errors. It controls the amount of audio signals from the AV receiver to the Pioneer universal disc player connected via HDMI, giving the best possible digital-to-analog conversion.

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AV Direct Mode

The feature turns off the network functions to suppress digital noise within the AV receiver, and improves sound quality for analog playback, digital input, HDMI playback etc. Mode 1 turns off the network module operation clock, while Mode 2 shuts down the network power completely for more superior sound.

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Audio Exclusive Mode

Interference from video signals is eliminated by turning off the video signal path via HDMI. You can enjoy detailed sound, full of spatial feel.

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Works with Alexa

Works with Alexa makes you control SC-LX704 with your voice via Alexa-enabled device such as the Amazon Echo, to play, pause, and skip titles or control the volume. You can enjoy the music via streaming service such like Amazon Music by selecting song title, artist name, release year, and genre.

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Ready for 4K HDR entertainment

Enjoy support for HDR (High Dynamic Range) video including HDR10, HLG, Dolby Vision®, and BT.2020. The 4:4:4 color space is also supported. Six HDMI inputs, ARC-ready MAIN OUT, and SUB OUT pass 4K/60p and HDR video from player to compatible TV and projector and all terminals are HDCP 2.2 compliant.

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Anti-Standing Wave Insulators

Features a special form with no parallel sides inside to prevent cavity resonance. This makes the sound localisation, tone, and scale clearer, while also contributing to seamless connection between the channels and improved response to quick sound.

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AC Inlet Type Thick Cable

A thick AC inlet type power cable is included to provide superior sound.

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2 Subwoofer Pre-Out

You can connect two powered subwoofers, and also set the volume level for each one at different levels.

The SC-LX904 comes with the 6th generation of the Direct Energy HD Amplifier and two ES9026PRO DACs, and is the befitting AV receiver to combine with Pioneer's flagship universal disc player. MCACC Pro Auto Room Tuning technology featuring Full Band Phase Control brings out the best from the 3D surround sounds of IMAX® Enhanced, Dolby Atmos®, and DTS:X, while PQLS jitter-less transmission provides rich, lifelike audio. The new Audio Exclusive Mode and AV Direct Mode let you enjoy detailed sound by turning off the unused functions that affect quality sound reproduction.

Features

  • Direct Energy HD Amplifier
  • IMAX Enhanced*
  • MCACC Pro Auto Room Tuning
  • ESS 384 kHz/32-bit DAC
Power
Amplifier Design Class D3 (Direct Energy HD)
Multi-ch Simultaneous Drive (8ohms, 1 kHz, THD 1 %) 880 W
4 OHM Speaker Yes
Channels 11.2
8 ohms, 1 kHz, THD 0.08 %, 2ch Driven FTC 140W+140W
Estimated Power Consumption/Network Standby off 340W / 0.1W
Handheld and Internet
AirPlay Apple AirPlay 2
Internet Radio TuneIn Radio
Chromecast built-in and Works with the Google Assistant Yes
FlareConnect for Multi-room Audio Yes
Roon Tested Yes
Streaming Audio From PC/Network Yes
iOS/Android Remote Control APP Pioneer Control App
Works with Alexa Yes (Firmware update)
DTS Play-Fi with Pioneer Music Control App Yes
Amazon Music, Pandora ® , Spotify, TIDAL, and Deezer Hi-Fi Music- Yes
Decoders & Formats
Digital Core DSP Engine Digital Quad-Core 32-bit DSP (Cirrus Logic) + Aureus floating- point DSP (TI)
Audio Processing 11.2
IMAX Enhanced Yes
Dolby Atmos Height Virtualizer Yes
Dolby Digital Plus Yes
DTS-HD Master Audio Yes
HDMI SACD Transfer Multi-Channel
Audio DACs 384 kHz/32-bit D/A Conversion with ES9026PRO x 2
Music File Playback 192 kHz/24-bit ALAC, AIFF, FLAC, WAV (RIFF) and 11.2 MHz DSD
Dolby Atmos Yes
Dolby TrueHD Yes
DTS:X Yes
DTS Neural:X Yes
Soundfield Calibration
MCACC Yes (Pro)
Full Band Phase Control Yes
Phase Control Yes
EQ Bands 9-Band
Distance Adjustment 0.05 feet
Auto Subwoofer Crossover Yes
MCACC Memory 3
Auto Phase Control Plus Yes
Standing Wave Control Multi-point (9 points)
EQ Type LR SYMMETRY EQ, FRONT ALIGN EQ, ALL CH ADJUST EQ
Polarity Check Yes
Prescision Distance Yes
Listening Modes
Auto Surround Yes
Advanced Surround 10+1
Stream Direct Yes (Direct, Pure Direct)
Front Stage Surround Advance Yes
Audio Features
Dialog Enhancement Yes
DSD Music File Yes
Sound Delay (Lip Sync) Yes
Bi-Amp Yes
Advanced Sound Retriever Yes (2ch)
Tone Control Multi
Speaker A/B Yes
Video Processing
4K Ultra HD Pass-Through Ultra HD Pass-through with HDCP 2.3 (4K/60p/4:4:4/24-bit, 4K/24p/4:4:4/36-bit, 4K/60p/4:2:0/36-bit)
3-D Ready Yes
HDMI Standby Through Yes with Input Switch / Last Memory
Dolby Vision Compatible Yes
HDMI x.v. Color Yes
Super Resolution Yes
4K Ultra HD Video Scaler Yes (1080p to 4K)
Audio Return Channel Yes (eARC)
HDR HDR10, HLG and BT.2020 Wide Color Gamut Signal Pass-through
HDMI 36-bit Deep Color Yes
Video Converter to HDMI Yes
Connectivity
HDMI Input / Output 7 In (6 Rear, 1 Front) / 3 Out
Bluetooth Built-In Bluetooth® Wireless Technology (Version: 4.2, Profile: A2DP 1.2/AVRCP 1.3, Codec: SBC/AAC) Built-in
Composite A/V Input / Output 2 in
Ethernet Input Yes
Digital Audio Inputs / Output 5 in (Optical 3, Coaxial 2) / 0 out
Headphone Output Yes
Phono Input Yes
Wi-Fi Built-In Dual Band (5 GHz/2.4 GHz) 802.11ac Compliant Wi-Fi® Built-in
Component Video Input / Output 2 in
USB Terminal Front and Rear
Analog Audio Inputs / Output 6 in / 0 out
Pre-Amp Output 11.2 ch
Front A/V Inputs USB & HDMI
AM/FM Presets AM/FM Tuner 40 Presets
Installation
On-Screen Display User-Friendly GUI with System Setup Menu
Powered Zone output ZONE2 / ZONE3
Zone 2 Sources All Audio Sources
12 Volt Trigger (Assignable) A.B
IR Serial Remote In/Out 2 in / 1 out
Function Rename Yes
Personal Preset Yes
Versatile Speaker Configuration Yes
Auto Power Down Yes
Multi-Room and Source Output ZONE2 / ZONE3 Pre/Line Out
Zone 3 Sources Analog/Net/Bluetooth/Tuner
RS-232C Yes
FL Dimmer Yes
Remote Yes
Sleep Timer Yes
Construction
Alumium Front Panel Yes
Transformer Stabilizer Yes
3D Space Frame Construction Yes
Speaker Terminals 11 Large
Advanced Direct Construction Yes
Low Leakage Flux Power Transformer Yes
Warranty
Warranty 3 Years
Dimensions
W x H x D (inches) 17-1/8 x 7-5/16 x 17-5/16 inches (435 x 185 x 440 mm)
Weight 34.2 lbs.(15.5Kg)

Quick Specs


  • Appearance

  • Type: Audio Components

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

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