Reviews

Pioneer SC-LX904 Dolby Atmos AV Receiver – Clean and natural sound

Along with an impressive range of channels and the high-end sound top quality to do them justice, the Pioneer SC-LX904 provides supreme home cinema quality.

11.2 channels for greatest Atmos and DTS:X
The Pioneer SC-LX904 delivers unique overall flexibility in Pioneer’s range. For the best Dolby Atmos system, this range topping Pioneer lets you set up 4 ceiling or Atmos-enabled audio speakers as well as total 7-channel surround sound. Additionally, use two Atmos speakers and get pleasure from a broad soundstage with ‘front wide speakers’ collecting a 9.2.2 system. If you don’t fancy a Dolby Atmos specific system but want the most immersive sound achievable, go for an 11.2 configuration. This provides 7.2 sound with the addition of front width and height audio speakers.

All the surround formats – which includes IMAX Enhanced
With wide-ranging surround sound assistance, the SC-LX904 has your option of format covered – however a lot of speakers you use. Suitable formats include Dolby Atmos, Dolby Atmos Height Virtualization Technology, DTS:X, DTS Neural:X and IMAX Enhanced. This large range of choices implies you can adjust your surround sound speaker system from the most basic system with ‘virtual height’ speakers to a full-blown 11.2 system that really bring the cinema home.Pioneer SC-LX904

215 watts of beast power
Providing up a mighty 215 watts (at 6 ohms) of real power, the Pioneer SC-LX904 highly recreates the sound of cinema. For improved effectiveness, the SC-LX904 uses Pioneer’s Class D Direct Energy HD amp. Pioneer’s Class D amplifiers also use short, direct signal ways. By getting rid of filters, feedback loops and existing limiters, the sound quality is both less unbalanced and more vibrant.

Digital precision from double ESS PRO DACs
With twin ESS ES9026PRO DACs (Digital to Analogue Convertors) used for all channels, the SC-LX904 provides studio quality digital audio. With a high signal-to-noise ratio and wide dynamic spectrum, digital audio advantages from ultra-low levels of noise and deep, effective dynamics. No matter whether watching a Blu-ray film or listening to streamed music, the advantage to all digital audio is wonderful to hear.

Jitterless sound transmission and processing for ultra-low distortion
Pioneer’s sophisticated PQLS (Precision Quartz Lock System) jitter reduction system guarantees a clean and natural sound top quality when connected to a suitable Pioneer disc player. In addition to PQLS, the Pioneer SC-LX904 is additionally equipped with PQFA (Precision Quartz File-based Audio) for ideal sync with your network/USB-based music files.Pioneer SC-LX904

Famous Pioneer SC-LX build quality
Fastidious focus to fine detail shown in the Pioneer’s building offers it high class sound quality. Featuring an Anti-Standing Wave Insulator and Rigid Trans-Stabiliser, the heavy weight casing isolates the very sensitive electronics from mechanical and electrical interference. This delivers a purity of sound that only the very best AV receivers can match.

Equipped for full-on systems
Featuring 6 HDMI inputs at the backside, as well as a further front-mounted socket, the SC-LX904 is equipped for full-on systems. 3 HDMI outlets include a second, Zone 2, for independent outputs. The SC-LX904 goes over the more standard models in also providing component and composite video inputs for older devices.

3 zone, multi-room flexibility
Using a 5.1.2 channel Atmos system in play, you can still use the extra channels to add two more powered zones. Zone 2 and Zone 3 can either be synced with the primary signal for ‘party’ sound or play from separate sources – giving the SC-LX904 true multi-room appeal. Passive outputs for Zone 2 and 3 are also available should you currently have amplification or dynamic speakers.

Stream it your way, with Apple AirPlay 2 and ‘Works with SONOS’
A lot more than only an AV receiver, the SC-LX904 is also a complete music streamer. Apple AirPlay 2 is standard as is ‘Works with SONOS’. Integrated Amazon Music, Spotify (Premium account required for full features), TIDAL and Deezer are all typical. There’s also Chromecast, FlareConnect and DTS Play-Fi plus TuneIn for Internet radio and Bluetooth music streaming.

Works with Apple AirPlay 2
AirPlay 2 takes this popular wireless streaming format and can make it much better. Manageable by simply asking Siri or using your Apple device, AirPlay 2 lets you gracefully stream music and podcasts all-around your home – and all in excellent sync.

Operates with SONOS
Link up to a SONOS Connect and the SC-LX904 becomes built-in into your SONOS system. You can group the receiver with other SONOS devices or use it separately. Working with SONOS means as soon as you start playing music from your SONOS application, the Pioneer switches on and chooses the proper input – automatically.

Chromecast with Google Assistant
Chromecast helps you stream music, podcasts and audio applications, including Google Play, at the touch of a button. Additionally, use Google Assistant and this Pioneer AV receiver becomes part of your voice controlled smart home.

The innovative SC-LX904 does cover the 1st feature that buyers are searching for, power. The Direct Energy HD Amplifier has now achieved the 6th generation and includes new power coils as well as new customized film capacitors co-developed with Shinyei Capacitor for which Pioneer states will provide the greatest sound. The power supply and patterning has been made via repeated tuning. Furthermore, the whole transmission path from the pre stage to the power stage has been transformed to well balanced circuitry, to transmit near noise-free top quality signals to the power stage. The receiver offers a Class D3 (Direct Energy HD) amp with 140 W x 11ch (8 ohms, 1 kHz, THD 0.08 %, 2ch Driven FTC).

Supports HDR10, Dolby Vision, HLG and BT.2020 standards
The Pioneer SC-LX904 is the ideal companion for your HDR-equipped TV and video sources. It supports HDR10, Dolby Vision, BT.2020 and HDCP 2.3, which implies you can play UHD Blu-ray discs and stream UltraHD video in the top quality. The HDMI sockets allow 4K pass-through, for hassle free switching and viewing without the receiver requiring to be powered up. Photo: Pioneer

Have fun with the best of the best, with the Pioneer SC-LX904.

Pioneer SC-LX904 specs:

AMPLIFICATION

Channels: 11

Amplification Type: Class D (Direct Energy HD)

215 W x 11ch (6 ohms, 1 kHz, THD 1 %, 1ch Driven IEC)Pioneer SC-LX904

CONSTRUCTION DESIGN

Advanced Direct Construction

Rigid Trans-Stabilizer

Anti-Standing Wave Insulator

AC Inlet Type Thick Cable

AUDIO FEATURES

IMAX Enhanced

Dolby Atmos®, Dolby Surround Upmixer

DTS:X®, DTS Neural:X® Upmixer

Reflex Optimizer

Dolby Atmos Height Virtualizer

Dolby® TrueHD, Dolby Digital Plus

DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS 96/24, DTS-ES, DTS Express

DSD Direct Playback via Network/USB (11.2, 5.6, 2.8 MHz/2 ch)

DSD Disc (SACD) Playback via HDMI (2.8 MHz/2 ch, 5.1 ch)

Digital Quad-Core 32-bit DSP (Cirrus Logic) + Aureus™ floating-point DSP (TI)

384 kHz/32-bit D/A Conversion with ES9026PRO x 2

Enhanced Audio Return Channel (eARC) on HDMI

MCACC Pro Auto Room Tuning

  • Full Band Phase Control
  • Precision Distance
  • Subwoofer EQ
  • Multi-point Standing Wave Control

PQLS Jitterless Sound Transmission

PQFA Jitterless Sound Processing for Network/USB

Audio Exclusive Mode

AV Direct Mode

Advanced Sound Retriever (2ch)

Advanced Surround Modes

  • Classical, Unplugged, Entertainment Show, Drama, Advanced Game, Action, Rock/Pop, Sports, Extended Stereo, Extended Mono, Front Stage Surround Advance

VIDEO FEATURES

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)*1

HDR10, HLG, BT.2020 Compliant Wide Colour Gamut and ALLM (Auto Low Latency Mode) Signal Pass-through

Dolby Vision™ Compatible

Ultra HD Upscaling (1080p to 4K)

3D Ready (Blu-ray Disc™, Broadcast, and Games)

Deep Colour (36-bit), “x.v. Colour”

HOME NETWORK FEATURES

FlareConnect™ for Multi-room Audio

Works with Alexa supporting multi-room music

Chromecast built-in*3 and Works with the Google Assistant

DTS Play-Fi supporting Critical Listening mode with Pioneer Music Control App

Apple AirPlay 2

Roon Tested

Works with SONOS supporting multiple Sonos Connect control and Volume Pass Through mode

Amazon Music, Spotify, TIDAL, and Deezer Hi-Fi Music-Streaming Services and Internet Radio with TuneIn Ready*4

Hi-Res Audio File Playback via USB/Network

  • Up to 192 kHz/24-bit ALAC*5, AIFF, FLAC, WAV (RIFF) and 11.2 MHz DSD

CONVENIENCE FEATURES

Personal Preset

Dialog Enhancement

Dual Band (5 GHz/2.4 GHz) 802.11ac Compliant Wi-Fi® Built-in

Bluetooth® Wireless Technology (Version: 4.2, Profile: A2DP 1.2/AVRCP 1.3, Codec: SBC/AAC) Built-in

Pioneer Remote App*7 Ready for Multi-room Entertainment Control and Network Streaming

User-Friendly GUI with System Setup Menu

On-Screen Information for Audio/Video Status

PC Setup

Auto Power Off in HDMI Standby Through

AM/FM Tuner 40 Presets

Sleep Timer

Self-Illuminating Remote Control

FRONT TERMINALS

HDMI 1 In

USB 1 In for USB Drive

MCACC Setup MIC In

Phones 1 Out

REAR TERMINALS

HDMI 6 In (4 Assignable)

HDMI 3 Out (1 for MAIN, 1 for SUB, 1 for ZONE 2)

Ethernet 1 In

USB 1 In for USB Drive

AV (Component) 2 In (Assignable)

AV (Composite) 2 In (Assignable)

Audio 6 In (Assignable)

Phono (MM) 1 In

Digital Coaxial 2 In (Assignable)

Digital Optical 3 In (Assignable)

Subwoofer x 2 Pre Out

ZONE B Line Out for Wireless Headphones

ZONE2/ZONE 3 Pre/Line Out

Speaker 11ch Out (FRONT, CENTER, SURROUND, SURROUND BACK, HEIGHT 1, HEIGHT 2)

IR 2 In/1 Out

12 V Trigger 2 Out

RS-232C

FM/AM Antenna

SPECIFICATIONS

Power Requirements: AC 220-230 V, 50/60 Hz

Power Consumption/Standby: 340 W/0.2 W

Dimensions (W x H x D): 435 x 185 x 440 mm

Weight: 18.5 kg

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