Audio T Verdict
Mojo 2 is already a remarkably capable portable DAC and headphone amplifier. Add Poly and it becomes something far more versatile: a self-contained wireless music player that can stream over Wi-Fi, work with Roon, accept AirPlay and Bluetooth, or carry a large music library on Micro SD.
It's a particularly neat combination because each product sticks to what it does best. Poly handles networking, wireless connectivity and stored music, while Mojo 2 takes care of Chord Electronics' FPGA-based digital conversion, UHD DSP and headphone amplification.
The result works just as happily on a desk or in a main Hi-Fi system as it does with a pair of headphones on the move. If you want Chord Electronics' portable DAC technology without keeping your phone permanently tethered by USB, this is the complete package.
Chord Electronics Mojo 2 and Poly
This bundle combines two products designed specifically to work together:
- Mojo 2: portable FPGA DAC and headphone amplifier
- Poly: wireless streamer, network player and Micro SD music player
Poly connects directly to Mojo 2, creating one compact portable system without requiring a separate digital interconnect between the two units.
Mojo 2: Portable FPGA DAC and Headphone Amplifier
Mojo 2 is built around Chord Electronics' custom-coded FPGA architecture rather than an off-the-shelf DAC chip.
Its current feature set includes:
- UHD lossless DSP
- Four-band tone adjustment
- Crossfeed
- Button lock
- Improved FPGA processing
- 40 DSP cores for WTA filtering
- Improved battery management
- USB-C data and switchable charging
- 3.5mm and 4.4mm headphone outputs
UHD Lossless DSP
Mojo 2's UHD DSP provides adjustable control over four frequency areas without using a conventional analogue tone-control circuit.
This allows the presentation to be tailored to different headphones, recordings or personal preferences while keeping the processing within Chord Electronics' digital architecture.
Headphone Compatibility
Mojo 2 provides:
- 1 x 3.5mm headphone output
- 1 x 4.4mm headphone output
Chord Electronics specifies support for headphones up to 800 ohms, with 90mW available into 300 ohms and 600mW into 30 ohms.
Current Headphone Connections
Early Mojo 2 units and older product copy may refer to two 3.5mm outputs. The current production specification uses one 3.5mm and one 4.4mm headphone socket.
Poly: Wireless Streaming for Mojo 2
Poly adds the wireless and network functions missing from Mojo 2 itself.
Current connectivity includes:
- 2.4GHz Wi-Fi
- Bluetooth wireless technology
- Apple AirPlay
- Roon Ready playback
- DLNA server and renderer
- Micro SD music playback
- Hotspot mode
Roon Ready
Poly can operate as a Roon Ready endpoint, allowing the Mojo 2 and Poly combination to become part of a compatible Roon-based music system.
This makes the bundle equally useful in a home Hi-Fi setup rather than restricting it to portable headphone listening.
Micro SD Music Player
Poly includes a Micro SD card slot for storing a music library directly with the player.
Chord Electronics describes the supported Micro SD capacity as effectively unlimited, making it possible to carry a substantial lossless and high-resolution music collection without using your phone's internal storage.
Useful Away from Home
Poly's hotspot mode and Micro SD playback mean the Mojo 2 and Poly system does not have to depend on your home Wi-Fi network or a constant internet connection.
High-Resolution Playback
Both products are designed around high-resolution digital playback.
Mojo 2
- PCM up to 768kHz
- DSD up to DSD256
- DSD via DoP
- USB-C and Micro USB
- Coaxial digital input
- Optical digital input
Poly
- PCM up to 768kHz
- DSD64 to DSD256
- DSD via DoP
- Wi-Fi streaming
- Micro SD playback
- Roon Ready
Current Poly DSD Specification
Older Poly descriptions may state support for DSD512. Chord Electronics' current specification is DSD64 through DSD256, so the current manufacturer figure is used here.
Gofigure App
Poly is configured using Chord Electronics' free Gofigure app for iOS and Android.
Gofigure handles functions including:
- Wi-Fi setup
- Network management
- Hotspot configuration
- Poly settings
- Firmware updates
- Micro SD QuickPlay functions
Battery and Charging
Both Mojo 2 and Poly contain rechargeable batteries, allowing the complete system to operate away from mains power.
Poly contains a 2200mAh lithium-polymer battery and Chord Electronics specifies around nine hours of playback, with fast USB charging taking approximately four hours.
Mojo 2 also features FPGA-controlled battery management, improved capacity and reduced power loss compared with the original Mojo.
Portable or Home Hi-Fi
The bundle is small enough for portable headphone use but can also operate as a compact source in a conventional system.
Typical uses include:
- Portable high-quality headphone listening
- Desktop headphone system
- Wireless source for a Hi-Fi amplifier
- Roon endpoint
- Micro SD music player
- Digital source for powered speakers with suitable analogue connectivity
- In-car playback through a suitable audio input
Made to Work Together
Poly was designed specifically around the physical dimensions and digital interface of Mojo and Mojo 2.
Once joined, the two units form a compact system measuring approximately 133mm in overall length while retaining access to Poly's Micro SD slot, charging connection and status indicators.
An official Mojo 2 and Poly leather case is also available separately for additional protection when travelling.
Audio T Listening
Our Reading team spent time comparing Mojo 2 with the original Mojo and explored its UHD DSP, crossfeed, headphone performance and continued compatibility with Poly.
Read: Testing, Testing, Chord Mojo 1, 2, 1, 2...
Key Features
- Chord Electronics Mojo 2 and Poly bundle
- Portable DAC and headphone amplifier
- Wireless music streamer
- Custom-coded FPGA DAC
- UHD lossless DSP
- Four-band tone adjustment
- Crossfeed function
- 40-core WTA filtering
- 3.5mm headphone output
- 4.4mm headphone output
- Supports headphones up to 800 ohms
- USB-C input
- Micro USB input
- Coaxial digital input
- Optical digital input
- PCM up to 768kHz
- DSD up to DSD256
- 2.4GHz Wi-Fi
- Bluetooth wireless technology
- Apple AirPlay
- Roon Ready
- DLNA server and renderer
- Micro SD playback
- Hotspot mode
- Gofigure app support
- Portable battery operation
- Precision-machined aluminium construction
- Made in the UK
Frequently Asked Questions
What is included in this bundle?
One Chord Electronics Mojo 2 DAC and headphone amplifier and one Chord Electronics Poly wireless streamer/player.
What does Poly add to Mojo 2?
Poly adds Wi-Fi, Bluetooth, AirPlay, Roon Ready operation, DLNA, Micro SD playback and portable hotspot functionality.
Does Mojo 2 have Wi-Fi by itself?
No. Wireless streaming is provided by Poly.
Is Poly Roon Ready?
Yes.
Can I play music from a Micro SD card?
Yes. Poly includes a Micro SD slot for local music playback.
What is the maximum PCM resolution?
Up to 768kHz.
What is the current DSD specification?
Chord Electronics currently specifies support up to DSD256.
What headphone sockets does current Mojo 2 have?
One 3.5mm and one 4.4mm headphone output.
Can two headphones be connected?
Yes, using the 3.5mm and 4.4mm outputs where the headphones have suitable connections.
Can I use Mojo 2 without Poly?
Yes. Mojo 2 can operate independently using USB-C, Micro USB, coaxial or optical digital sources.
Can Poly work away from my home Wi-Fi?
Yes. Poly can create its own hotspot and can also play music stored locally on Micro SD.
What app configures Poly?
Chord Electronics Gofigure for iOS and Android.
Can the bundle be used in a home Hi-Fi system?
Yes. Mojo 2 can feed a suitable amplifier or active speaker system while Poly provides wireless network playback.
Is an official protective case available?
Yes. Chord Electronics manufactures a dedicated Mojo 2 and Poly premium leather case separately.
Can Audio T demonstrate Mojo 2 and Poly?
Yes. Contact your local Audio T store to discuss demonstration availability.
Related Chord Electronics Products
Why Buy From Audio T?
- Mojo 2 and Poly setup advice
- Headphone matching guidance
- Gofigure and Wi-Fi setup help
- Roon and network-streaming advice
- Micro SD music-library guidance
- Portable and home-system setup advice
- In-store demonstrations where appropriate
- Home demonstrations where appropriate
- Ongoing after-sales support
Contact your local Audio T store if you would like to demonstrate the Chord Electronics Mojo 2 and Poly bundle or need help configuring it for portable or home listening.