Audio T Verdict
Mojo 2 manages to squeeze an extraordinary amount of Chord Electronics technology into something genuinely pocket-sized. Its custom FPGA DAC, powerful headphone stage and lossless UHD DSP make it just as useful for improving a pair of headphones on the move as it is sitting on a desk connected to a laptop.
The latest version is even more practical. You now get both 3.5mm and 4.4mm headphone connections, with independent volume and DSP memories for each output, plus switchable charging through the USB-C connection.
Add Poly and Mojo 2 becomes a wireless network player too, giving it an upgrade path that few portable DACs can match.
Chord Electronics Mojo 2
Mojo 2 is a portable DAC and headphone amplifier designed, engineered and built in Britain around Chord Electronics' proprietary FPGA digital technology.
The current production version combines:
- Custom-coded FPGA digital conversion
- Lossless UHD DSP
- 40 DSP cores for WTA filtering
- 1 x 3.5mm headphone output
- 1 x 4.4mm headphone output
- Independent volume and DSP memory for each headphone output
- USB-C data and switchable charging
- Micro USB digital input
- Separate Micro USB charging input
- Coaxial and dual-data coaxial input capability
- Optical digital input
- PCM playback up to 768kHz
- DSD playback up to DSD256 via DoP
- Full compatibility with Chord Electronics Poly
Custom FPGA DAC Technology
Like the larger Hugo and DAVE models, Mojo 2 does not rely on a conventional off-the-shelf DAC chip.
Instead, Chord Electronics uses a powerful FPGA running its own custom digital code, giving the company control over filtering, noise shaping, volume processing and digital-to-analogue conversion.
Mojo 2 also employs 40 dedicated DSP cores for its WTA filtering architecture.
Lossless UHD DSP
One of Mojo 2's most useful features is its UHD DSP, a digital tone-adjustment system developed to alter frequency response without the degradation associated with conventional digital EQ implementations.
It can be used to make subtle adjustments for:
- Different headphones
- Recording quality
- Personal listening preference
- Changes between portable and home systems
The menu system also gives access to crossfeed, brightness, button lock and other settings.
New 3.5mm and 4.4mm Headphone Outputs
The current Mojo 2 provides:
- 1 x 3.5mm headphone output
- 1 x 4.4mm headphone output
The 4.4mm socket was introduced to the production model in late 2025, replacing one of the two 3.5mm sockets fitted to earlier Mojo 2 units.
Independent Headphone Memories
The current 3.5mm and 4.4mm outputs remember their own volume and DSP settings.
This is particularly useful if you regularly swap between two different pairs of headphones, allowing Mojo 2 to recall the preferred setup for each connection.
Headphone Driving Power
Despite its compact size, Mojo 2 is designed to work with a broad range of headphones, including models with impedances up to 800 ohms.
Chord Electronics publishes:
- 90mW into 300 ohms at 1% distortion
- 600mW into 30 ohms at 1% distortion
- 0.06-ohm output impedance
As always, headphone sensitivity matters alongside impedance, so we'd recommend trying demanding models with Mojo 2 before buying where possible.
Digital Connectivity
USB-C
High-speed digital input with user-switchable charging on the current production version.
Micro USB
High-resolution digital input supporting PCM rates up to 768kHz.
Coaxial
3.5mm coaxial connection with conventional and dual-data capability, supporting up to 768kHz where compatible.
Optical
TOSLINK digital input supporting PCM up to 96kHz.
PCM to 768kHz and DSD256
Mojo 2 supports:
- PCM: up to 768kHz
- DSD: up to DSD256
- DSD transmission: DoP
The maximum available resolution depends on the source and digital connection being used.
Improved Battery Management and Desktop Use
Mojo 2 uses FPGA-controlled battery management, with Chord Electronics increasing battery capacity while reducing power loss compared with the original Mojo design.
Intelligent Desktop Mode makes Mojo 2 particularly useful when it spends long periods connected to power as part of a desktop or home system.
The current model also allows USB-C charging to be switched on or off, while retaining the separate Micro USB charging connection.
Add Poly for Wireless Streaming
Mojo 2 is fully compatible with Chord Electronics Poly, which connects directly to the DAC and adds:
- Wi-Fi streaming
- Bluetooth wireless technology
- AirPlay
- Roon Ready playback
- DLNA
- Micro SD music playback
- Portable hotspot operation
View Chord Electronics Poly
View the Chord Electronics Mojo 2 and Poly Bundle
Pocket-Sized British Engineering
Mojo 2 is housed in a CNC-machined aircraft-grade aluminium chassis measuring:
- Length: 83mm
- Width: 62mm
- Height: 22.9mm
- Weight: 185g
Its illuminated spherical controls provide colour-coded feedback for volume, menu functions and incoming sample rate while keeping the unit compact enough for genuinely portable use.
Audio T Listening
Our Reading team put Mojo 2 alongside the original Mojo to explore the improvements in FPGA processing, UHD DSP, headphone performance and Poly compatibility.
Read: Testing, Testing, Chord Mojo 1, 2, 1, 2...
Key Features
- Portable DAC and headphone amplifier
- Custom-coded FPGA architecture
- 40-core WTA filtering
- Lossless UHD DSP
- Advanced tone adjustment
- Crossfeed function
- Button lock
- 1 x 3.5mm headphone output
- 1 x 4.4mm headphone output
- Independent output volume memory
- Independent output DSP memory
- Supports headphones up to 800 ohms
- USB-C data input
- Switchable USB-C charging
- Micro USB digital input
- Separate Micro USB charging input
- Coaxial digital input
- Dual-data coaxial capability
- Optical digital input
- PCM up to 768kHz
- DSD up to DSD256
- DSD via DoP
- FPGA-controlled battery management
- Intelligent Desktop Mode
- Poly compatible
- Roon Tested
- Plays with Audirvana certified
- CNC-machined aluminium chassis
- Handmade in the UK
Frequently Asked Questions
What is Chord Electronics Mojo 2?
Mojo 2 is a pocket-sized FPGA DAC and headphone amplifier for phones, tablets, computers, digital transports and other compatible digital sources.
What headphone sockets does the current Mojo 2 have?
The current version has one 3.5mm and one 4.4mm headphone output.
Why do some Mojo 2 pictures show two 3.5mm sockets?
Earlier Mojo 2 units used two 3.5mm outputs. Chord Electronics updated the product in December 2025, replacing one with a 4.4mm connection.
Is the 4.4mm output described as balanced?
Chord Electronics describes it as a high-performance 4.4mm headphone output but does not describe Mojo 2 as a fully balanced headphone amplifier, so it should not automatically be treated as a balanced-output design.
Can two headphones be connected at the same time?
Yes, using the 3.5mm and 4.4mm connections where suitable headphone cables are available.
Does Mojo 2 remember settings for different headphones?
Yes. Current production units provide independent volume and DSP memory for the 3.5mm and 4.4mm outputs.
What is UHD DSP?
It is Chord Electronics' lossless digital tone-adjustment system, allowing the frequency balance to be tailored without using a conventional analogue tone-control circuit.
What is the maximum PCM resolution?
Up to 768kHz through compatible digital inputs.
What is the maximum DSD resolution?
Chord Electronics currently specifies up to DSD256 via DoP.
Can USB-C charge Mojo 2?
Yes. On the current production version USB-C charging can be switched on or off. A separate Micro USB charging input is also retained.
Can I use Mojo 2 permanently on a desk?
Yes. Its FPGA-controlled battery system includes Intelligent Desktop Mode for extended use while connected to power.
Can Mojo 2 stream music wirelessly?
Mojo 2 itself is a wired DAC. Add Chord Electronics Poly for Wi-Fi, Bluetooth, AirPlay, Roon Ready and Micro SD playback.
What warranty does Mojo 2 have?
Chord Electronics currently specifies a one-year manufacturer warranty.
Related Chord Electronics Products
Why Buy From Audio T?
- Headphone matching and demonstrations
- Mojo 2 setup advice
- Poly streaming guidance
- USB and digital-source setup
- Desktop and portable system 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 Chord Electronics Mojo 2 with your own headphones or discuss adding Poly for wireless streaming.