The 2025 update brings two meaningful real-world improvements to the Mojo 2. One of the original 3.5mm headphone outputs has been replaced with a 4.4mm output — worth noting this is not a true balanced output, but rather an unbalanced output on a 4.4mm connector, making it compatible with the growing range of headphones and IEMs that terminate in 4.4mm. Both the 3.5mm and 4.4mm outputs now have independent volume and DSP memory, so there's no need to readjust settings when switching between different headphones. The second major change is that the USB-C port now supports both data and charging — switchable via the menu — meaning you no longer need to hunt for a Micro-USB cable just to top up the battery. The price has not changed.

Almost every portable DAC on the market uses an off-the-shelf DAC chip from a manufacturer like ESS or AKM. The Mojo 2 is different — it uses a custom-coded FPGA (Field Programmable Gate Array) processor running proprietary digital audio technology developed by Chord's engineer Rob Watts over more than two decades. The conversion itself is handled by Chord's own Pulse Array DAC rather than a standard chip, fed by a 40,960-tap WTA (Watts Transient Aligned) filter running across 40 DSP cores. For context, most DAC chips use filters with 128 to 1024 taps — the Mojo 2's filter is orders of magnitude more complex. The result is a dynamic range of 125.7dB and a noise floor of just 2.7µV, with no measurable noise floor modulation.

The Mojo 2 has four digital inputs: USB-C, Micro-USB, optical (3.5mm), and coaxial. The USB-C port handles data from phones, tablets, and laptops, and on the 2025 edition also supports charging — switching between data and charging modes is done via the menu. The Micro-USB port carries data for use with the Chord Poly streaming module, or for connecting legacy devices. The optical and coaxial inputs are ideal for connecting CD players, TVs, or other digital sources. For iPhone users, a Lightning to USB-C adapter is needed. Android users can connect directly via USB-C to USB-C.

Battery life is rated at over eight hours, with real-world use typically landing in the seven to eight hour range depending on the headphones being driven and volume level. Charging is handled by a custom FPGA-based system that delivers 75% less energy loss compared to typical DAC charging circuits, meaning faster and cooler charging. For desk use, the Mojo 2 features an Intelligent Desktop Mode that allows the device to run entirely from external power without cycling through the battery — so you can leave it plugged in permanently without degrading battery health over time. Desktop mode is indicated by a purple battery status light.

Yes — the Mojo 2 is significantly more powerful than its compact size suggests, and is capable of driving headphones up to 800Ω. Output power is 600mW into 30Ω and 90mW into 300Ω from the single-ended 3.5mm output. Its output impedance is just 0.06 ohms, which means it maintains a completely flat frequency response even with sensitive multi-driver IEMs that would reveal colouration on lesser amplifiers. Combined with a 125.7dB dynamic range and no measurable noise floor modulation, the Mojo 2 is equally at home with the most sensitive IEMs and the most power-hungry full-sized headphones.