Audio T Verdict
The Bluesound NODE ICON is the flagship music streamer in the NODE range, combining the familiar flexibility of BluOS with considerably more ambitious digital-to-analogue conversion, balanced outputs, a substantial headphone amplifier and a large front display.
Its dual-mono ESS Sabre DAC design, balanced XLR connections and low-noise analogue circuitry make it particularly well suited to revealing amplifiers, active loudspeakers and systems where the streamer will also act as the main digital pre-amplifier.
HDMI eARC, Dolby Digital decoding, two-way Bluetooth, USB audio, multi-room playback and optional Dirac Live room correction add real flexibility. It does not contain power amplification or a phono stage, so passive loudspeakers and turntables require suitable additional equipment.
Bluesound NODE ICON Reference Music Streamer and DAC
The Bluesound NODE ICON is a high-performance network music streamer, digital-to-analogue converter, digital pre-amplifier and headphone amplifier built around the BluOS streaming platform.
It can play music from compatible online services, internet radio, network storage, USB drives, computers, mobile devices and connected digital or analogue sources.
Balanced XLR and unbalanced RCA outputs allow it to connect to an integrated amplifier, pre-amplifier, power amplifier or pair of active loudspeakers.
A 5-inch full-colour front display shows album artwork, track information, source details and system status without requiring a phone or tablet to remain open.
What Does the NODE ICON Do?
Music Streamer and DAC
- Streams music through the BluOS platform
- Plays files stored on a compatible home network
- Supports high-resolution PCM up to 24-bit and 192kHz
- Supports DSD playback up to DSD256
- Uses two ESS Sabre ES9039Q2M DAC chipsets
- Provides balanced and unbalanced analogue outputs
Digital Pre-Amplifier
- Provides variable or fixed output operation
- Can connect directly to a suitable power amplifier
- Can control the volume of compatible active speakers
- Includes tone and output controls through BluOS
- Provides wired and wireless subwoofer options
- Supports optional Dirac Live room correction
Headphone Amplifier
- Uses THX AAA headphone amplifier technology
- Provides two full-size 6.3mm headphone sockets
- Suitable for a wide range of headphone impedances
- Designed for low noise and distortion
- Supports wireless Bluetooth headphones
- Provides app-controlled volume adjustment
The NODE ICON Does Not Contain a Power Amplifier
The rear RCA and XLR connections provide line-level audio rather than speaker-level amplification.
Conventional passive loudspeakers require a suitable integrated amplifier or power amplifier between the NODE ICON and the speakers.
Alternatively, the NODE ICON can connect directly to compatible active loudspeakers that include their own amplification.
Dual-Mono ESS Sabre DAC Design
The NODE ICON uses two ESS Sabre ES9039Q2M digital-to-analogue converter chipsets within a dual-mono circuit design.
Separating the left and right channels within the conversion architecture helps reduce interaction between channels and supports the NODE ICON's balanced analogue output stage.
The fourth-generation ESS Hyperstream architecture is designed to provide wide dynamic range, low distortion and accurate conversion of high-resolution digital audio.
The NODE ICON also uses an ESS ES9826 analogue-to-digital converter for its stereo analogue input, allowing a connected line-level source to be incorporated into BluOS with low noise and distortion.
Balanced XLR Performance
- Signal-to-noise ratio of -129dB
- Suitable for compatible balanced amplifiers
- Useful for longer analogue cable runs
- Provides strong rejection of external electrical noise
- Can operate at fixed or variable level
Unbalanced RCA Performance
- Signal-to-noise ratio of -121dB
- Compatible with most conventional Hi-Fi amplifiers
- Can operate at fixed or variable level
- Suitable for integrated amplifiers and active speakers
- Can be used alongside the XLR outputs
QRONO d2a Digital Timing Technology
The NODE ICON incorporates QRONO d2a technology developed by MQA Labs.
QRONO d2a is designed to correct timing errors introduced during digital-to-analogue conversion and help the output follow the timing response of the original signal more accurately.
This processing works alongside the dual ESS DAC architecture rather than functioning as a separate music format or streaming service.
High-Resolution BluOS Music Streaming
BluOS provides access to compatible streaming services, internet radio, locally stored music and multi-room playback through one control platform.
Music can be selected and controlled through the BluOS Controller app for compatible iOS, Android, Windows and macOS devices.
Direct integrations include Spotify Connect, including compatible Spotify Lossless playback, TIDAL Connect, Qobuz Connect, Apple AirPlay 2 and Roon Ready operation.
BluOS also provides access to more than 20 compatible music and internet-radio services. Availability, subscription requirements and maximum playback quality are determined by the individual service provider and may change over time.
Supported Audio Formats
The NODE ICON supports a broad range of compressed, lossless and high-resolution audio formats.
- FLAC
- MQA
- Apple Lossless
- WAV
- AIFF
- MPEG-4 SLS
- MP3
- AAC
- WMA and WMA Lossless
- OGG
- OPUS
- DSD up to DSD256
PCM playback is supported at resolutions up to 24-bit and 192kHz.
Play Music from Network Storage
Music stored on a compatible computer or network-attached storage device can be indexed and played through BluOS.
Server Message Block network sharing is supported for libraries containing up to approximately 200,000 files.
The practical library size will also depend on network performance, metadata quality, album artwork and the storage device being used.
BluOS Multi-Room Audio
The NODE ICON can be grouped with compatible Bluesound and BluOS-enabled products to create a whole-home music system.
Grouped players can reproduce the same music in synchronisation, while separate rooms can play different sources at the same time.
The BluOS Controller app manages room grouping, playback queues, volume, source selection, streaming services and player settings.
Compatible BluOS products are available from Bluesound and selected partner manufacturers, allowing the platform to be incorporated into a wide range of Hi-Fi and installed-audio systems.
Balanced XLR and RCA Analogue Outputs
The NODE ICON provides one pair of balanced XLR outputs and one pair of unbalanced RCA outputs.
Both can be configured for variable-level operation when the NODE ICON is being used as a pre-amplifier or fixed-level operation when connected to a conventional integrated amplifier or separate pre-amplifier.
The XLR and RCA outputs can be used simultaneously, allowing the NODE ICON to feed more than one suitable line-level component.
Take Care When Using Fixed Output Level
Fixed output bypasses the NODE ICON's normal volume adjustment and sends a full-level signal to the connected equipment.
Fixed mode is suitable when volume is controlled by an integrated amplifier or separate pre-amplifier.
When connecting directly to a power amplifier or active loudspeaker, variable output should normally be selected and the volume reduced before playback begins.
Optical, Coaxial and USB Digital Outputs
External digital-to-analogue converters and suitably equipped amplifiers can be connected through optical Toslink, coaxial SPDIF or USB Audio 2.0.
Optical and coaxial connections provide straightforward compatibility with a wide range of Hi-Fi DACs and amplifiers.
The USB Type-A connection can operate as a USB Audio 2.0 output when a compatible external DAC is connected.
USB Audio Output Changes the Active Output
When a compatible external DAC is selected through USB Audio output, the NODE ICON's standard analogue, optical and coaxial outputs are disabled.
Disconnect the USB DAC or return the output selection to Default within the BluOS audio settings to reactivate the standard outputs.
Dirac Live processing is not currently available through the USB audio output.
USB-C Audio Input from a Computer
The rear USB-C input allows a compatible computer, iOS device or Android device to use the NODE ICON as an external audio device.
This provides a direct digital connection for music software, desktop audio and other compatible applications.
The USB-C connection is an audio input and is separate from the USB Type-A connection used for storage devices and compatible USB DAC output.
USB Music Storage
A compatible FAT32-formatted USB memory device or external drive can be connected to the USB Type-A port.
Music stored on the drive can then be indexed and selected through the BluOS Controller app using Local Server Mode.
The same USB Type-A connection is also used for USB audio output, so it cannot perform both jobs at the same time.
Analogue and Optical Inputs
A stereo RCA analogue input allows a CD player, tuner, cassette deck, external phono stage or another suitable line-level component to be played through the NODE ICON.
Connected analogue audio is converted into the digital domain using the internal ESS ES9826 analogue-to-digital converter before being processed and distributed through BluOS.
A Toslink optical input is also provided for compatible televisions, CD transports, games consoles and other digital sources.
The Analogue Input Is Not a Phono Stage
A standard moving magnet or moving coil cartridge cannot be connected directly to the NODE ICON's RCA analogue input.
A turntable requires a suitable built-in or external phono stage. The line-level output from that phono stage can then be connected to the NODE ICON.
The
Bluesound HUB
provides a dedicated moving magnet phono input when whole-home turntable streaming is required.
HDMI eARC for Television Sound
HDMI eARC allows a compatible television to send sound to the NODE ICON through a single HDMI cable.
Television apps, connected video sources and games consoles can therefore use the main Hi-Fi system without requiring a separate optical connection.
HDMI CEC allows compatible television remotes to control basic functions such as volume and standby, depending on the settings and equipment being used.
Dolby Digital Decoding
The NODE ICON supports Dolby Digital and can convert a compatible multi-channel Dolby Digital soundtrack for playback through a two-channel system.
This is useful when watching television, films or games through a conventional stereo amplifier and pair of loudspeakers.
The NODE ICON Is Not an AV Receiver
The NODE ICON does not provide multi-channel speaker terminals, power amplification or full surround-sound processing.
It is designed primarily for stereo playback and downmixes compatible Dolby Digital content for a two-channel system.
Customers requiring Dolby Atmos, centre channels or surround speakers should consider a dedicated home cinema amplifier or compatible Bluesound soundbar system.
Dirac Live Room Correction Ready
The NODE ICON is compatible with Dirac Live room correction.
Dirac Live measures the interaction between the loudspeakers and listening room before creating correction filters intended to improve tonal balance, imaging and low-frequency control.
The loudspeakers should still be positioned carefully before room correction is measured and applied.
Dirac Live Requires Additional Purchases
A Dirac Live licence is not included with the NODE ICON and must be purchased separately from Dirac.
Calibration also requires a compatible measurement microphone. Bluesound's optional Room Calibration Kit includes a suitable microphone and USB adapter.
Dirac Live works with the NODE ICON's RCA, XLR, optical and coaxial outputs, but not with USB audio output.
THX AAA Headphone Amplifier
Two full-size 6.3mm headphone sockets are powered by THX AAA headphone amplifier technology.
Feed-forward error-correction circuitry is designed to reduce noise and distortion while maintaining a linear response across a wide range of headphone loads.
The two sockets are positioned on opposite sides of the front panel, helping keep the headphone cable clear of the central display and touch controls.
Lower-Impedance Headphones
- 150mW continuous output into 16 ohms
- 235mW continuous output into 32 ohms
- Suitable for many conventional Hi-Fi headphones
- Low-noise THX AAA amplifier design
Higher-Impedance Headphones
- 56mW continuous output into 250 ohms
- 23mW continuous output into 600 ohms
- Suitable for many higher-impedance designs
- Final performance depends on headphone sensitivity
Headphone impedance alone does not determine how difficult a model is to drive. Sensitivity and the listening level required should also be considered.
5-Inch Full-Colour Display
The front-mounted 5-inch display shows album artwork, track information, input details, volume and system status.
It is a display rather than a touchscreen. Detailed browsing, setup and system configuration are handled through the BluOS Controller app.
The glass front panel and black anodised aluminium enclosure give the NODE ICON a more substantial appearance than the standard NODE and NODE NANO.
Proximity-Sensing Touch Controls
A touch-sensitive control panel is positioned on the top of the enclosure.
A proximity sensor illuminates the controls as a hand approaches, providing quick access without leaving the panel permanently illuminated.
- Play and pause
- Previous and next track
- Touch-sensitive volume slider
- Five programmable preset buttons
- Front status indicator
Presets can provide direct access to regularly used playlists, albums, radio stations and other compatible BluOS content.
Infrared Remote Learning
The NODE ICON includes a front infrared sensor and can learn commands from a compatible existing remote control.
This allows frequently used functions such as volume, play, pause and track selection to be assigned without adding another handset to the system.
A separate 3.5mm infrared input is also provided for compatible control and custom-installation systems.
Two-Way aptX Adaptive Bluetooth
Bluetooth 5.2 with aptX Adaptive provides convenient wireless playback from compatible phones, tablets and computers.
Two-way Bluetooth allows the NODE ICON to receive music from a source device or transmit audio to compatible wireless headphones and speakers.
Bluetooth quality depends on the source device, receiving equipment, codec support, distance and local wireless conditions.
Network streaming through BluOS will normally provide the most consistent route for high-resolution music playback.
Ethernet and Dual-Band Wi-Fi
The NODE ICON can connect to the home network using Gigabit Ethernet or dual-band Wi-Fi 5.
Gigabit Ethernet
- Uses a standard RJ45 network cable
- Supports speeds up to 1000Mbps
- Provides a stable connection where cabling is practical
- Recommended for large network music libraries
- Useful within larger multi-room systems
Dual-Band Wi-Fi
- Supports compatible 2.4GHz and 5GHz networks
- Allows flexible positioning without a network cable
- Performance depends on local wireless coverage
- May be affected by walls and interference
- Should be tested in the final equipment position
Subwoofer Connection
A dedicated mono RCA subwoofer output allows a compatible powered subwoofer to be added to the system.
The BluOS audio settings provide subwoofer level and crossover controls for integration with the main loudspeakers.
The
Bluesound PULSE SUB+
can also connect wirelessly within a compatible Bluesound system.
A wired connection is normally preferable when the subwoofer and NODE ICON can be positioned within practical cable distance.
NODE ICON, NODE or NODE NANO?
Choose NODE ICON When
- Sound quality from the internal DAC is a priority
- Balanced XLR outputs are required
- A large front display is important
- High-performance wired headphones will be used
- USB-C computer audio input is required
- The streamer may act as the system pre-amplifier
Choose NODE When
- You want broad BluOS flexibility at a lower price
- RCA analogue output is sufficient
- A front display is not required
- You need HDMI eARC and Dolby Digital
- You want Dirac Live readiness
- A single headphone connection is sufficient
Choose NODE NANO When
- You primarily need straightforward music streaming
- Compact size is important
- HDMI eARC is not required
- An analogue input is not required
- You already own a suitable amplifier or DAC
- You want the most affordable route into BluOS
Planning a NODE ICON System
With an Integrated Amplifier
- Connect by balanced XLR or unbalanced RCA
- Use fixed output if the amplifier controls volume
- Select a suitable line-level amplifier input
- Do not connect to a conventional phono input
- Use HDMI eARC for compatible television sound
With a Power Amplifier
- Use variable output from the NODE ICON
- Reduce the volume before initial playback
- Use XLR where both products provide balanced connections
- Connect passive loudspeakers to the power amplifier
- Consider Dirac Live after speaker positioning
With Active Loudspeakers
- Connect directly using compatible line-level inputs
- Choose RCA or balanced XLR as appropriate
- Use variable output for normal volume control
- Check the speaker input sensitivity
- Add a compatible subwoofer if required
Installation and Setup
The NODE ICON should be placed on a stable equipment support with access to its rear connections and sufficient ventilation.
Initial configuration includes connecting the player to the network, installing any available BluOS updates, selecting the output mode and signing into the required streaming services.
Additional setup may include HDMI eARC configuration, infrared remote learning, subwoofer adjustment, local music-library indexing and Dirac Live calibration.
Audio T can help configure the NODE ICON, match it with suitable amplification and demonstrate the BluOS Controller app.
Key Features
- Flagship Bluesound network music streamer
- BluOS multi-room operating system
- Dual-mono digital-to-analogue converter design
- Two ESS Sabre ES9039Q2M DAC chipsets
- ESS ES9826 analogue-to-digital converter
- QRONO d2a timing-correction technology
- PCM playback up to 24-bit and 192kHz
- DSD playback up to DSD256
- MQA file support
- More than 20 compatible streaming and radio services
- Spotify Connect with compatible Spotify Lossless support
- TIDAL Connect
- Qobuz Connect
- Apple AirPlay 2
- Roon Ready
- Two-way Bluetooth 5.2
- aptX Adaptive Bluetooth support
- Dirac Live Ready
- HDMI eARC input
- Dolby Digital decoding
- Stereo RCA analogue input
- Toslink optical digital input
- USB-C computer and mobile-device audio input
- USB Type-A external storage support
- USB Audio 2.0 digital output
- Balanced XLR stereo outputs
- Unbalanced RCA stereo outputs
- Fixed and variable output modes
- Coaxial digital output
- Toslink optical digital output
- Mono RCA subwoofer output
- Wireless connection to Bluesound PULSE SUB+
- 12V trigger output
- THX AAA headphone amplifier technology
- Two full-size 6.3mm headphone outputs
- 5-inch full-colour non-touch display
- Proximity-sensing touch control panel
- Five programmable preset buttons
- Infrared remote learning
- 3.5mm infrared input
- Gigabit Ethernet
- Dual-band Wi-Fi 5
- Quad-core 1.8GHz ARM Cortex-A53 processor
- Black anodised aluminium enclosure
Frequently Asked Questions
What is the Bluesound NODE ICON?
It is a network music streamer, DAC, digital pre-amplifier and headphone amplifier. It can connect to an existing amplifier, power amplifier, active loudspeakers, external DAC or wired headphones.
Does the NODE ICON contain an amplifier?
It contains a dedicated headphone amplifier but not a power amplifier for conventional passive loudspeakers. Passive speakers require a suitable integrated amplifier or power amplifier.
Can it connect directly to active speakers?
Yes. Compatible active loudspeakers can connect through the variable-level RCA or balanced XLR outputs.
Can it connect directly to a power amplifier?
Yes. Select variable output, reduce the NODE ICON's volume before playback and connect it to a suitably matched power amplifier.
Does the NODE ICON have balanced outputs?
Yes. It provides one stereo pair of balanced XLR outputs as well as conventional unbalanced RCA outputs.
Can I use the XLR and RCA outputs together?
Yes. The balanced and unbalanced analogue outputs can be used simultaneously to feed compatible line-level equipment.
Does it have a built-in phono stage?
No. A turntable requires a built-in or external phono stage before it can be connected to the stereo RCA analogue input.
Does it support Dirac Live?
Yes. The NODE ICON is Dirac Live Ready, but a separate licence and compatible calibration microphone are required.
Does Dirac Live work through every output?
Dirac Live works through the RCA, XLR, optical and coaxial outputs. It does not currently process audio sent through the USB digital output.
Can I connect the NODE ICON to a computer by USB?
Yes. The rear USB-C connection accepts audio from compatible computers, iOS devices and Android devices.
Can it send audio to an external USB DAC?
Yes. The USB Type-A connection supports USB Audio 2.0 output to a compatible external DAC. Selecting USB output disables the standard analogue, optical and coaxial outputs.
Can it play music from a USB drive?
Yes. Compatible FAT32-formatted USB storage can be connected to the USB Type-A port and accessed through BluOS Local Server Mode.
Does the display work as a touchscreen?
No. The 5-inch display shows artwork and playback information, while detailed browsing and setup are handled through the BluOS Controller app.
Can it connect to a television?
Yes. HDMI eARC allows compatible television sound to play through the NODE ICON and connected Hi-Fi system.
Does it support Dolby Atmos?
No. The NODE ICON supports Dolby Digital and is designed to downmix compatible content for stereo playback. It is not a Dolby Atmos or multi-channel AV receiver.
Does it support Apple AirPlay 2?
Yes. Apple AirPlay 2 is built in for compatible Apple devices and applications.
Is the NODE ICON Roon Ready?
Yes. It can operate as a Roon Ready network endpoint when connected to a compatible Roon system.
Does it support Bluetooth headphones?
Yes. Two-way Bluetooth allows audio to be transmitted to compatible Bluetooth headphones and speakers.
Can Audio T configure the NODE ICON?
Yes. Audio T can help with network setup, streaming services, amplifier matching, fixed or variable outputs, HDMI eARC, subwoofer integration, local music libraries and Dirac Live preparation.
Why Buy From Audio T?
- Expert advice comparing NODE ICON, NODE and NODE NANO
- Demonstrations through participating Audio T stores
- Integrated amplifier and power amplifier matching
- Active loudspeaker compatibility advice
- Balanced XLR and unbalanced RCA connection guidance
- Fixed and variable output configuration
- Headphone matching and demonstration
- External DAC and digital connection advice
- USB audio input and output configuration
- Turntable and phono-stage matching
- HDMI eARC and television setup
- Dolby Digital configuration
- Subwoofer matching and setup
- BluOS Controller app configuration
- Streaming-service account setup
- Local music-library and network-storage advice
- Multi-room Bluesound system planning
- Dirac Live preparation and installation guidance
- Professional home installation options
- Part exchange available on suitable existing equipment
- Ongoing Bluesound and BluOS support
Contact your local Audio T store
to arrange a demonstration or discuss adding the Bluesound NODE ICON to your Hi-Fi, headphone, television or multi-room audio system.