The British Chord has made Mojo a new digital-analog converter (DAC) and portable headphone amplifier. The starting point is the appreciated DAC Hugo, a high level product, able to guarantee high performance. According to Chord, Mojo is basically the portable version of Hugo, enclosed in an aluminum frame measuring 22 x 60 x 82 mm, weighing 180 grams.
Mojo can be used with various sources, such as smartphones (Android, Apple and Microsoft), portable music players or computers (Mac, Linux and PC). The digital inputs are three: optical, coaxial and a microUSB port. There are two outputs, both for headphones, on 3.5 mm jack. Mojo is able to manage substantially all the audio formats, ie PCM, WAV, AIFF, MP3, FLAC and DSD. Sample rates up to 768kHz / 32 bit and DSD256 files are supported.
The input selection is automatic: if a device is connected down, priority is given to the microUSB, then to the coaxial input and finally to the optical input. The colored balls on the chassis act as both buttons (for switching on and off, volume control, etc.) and as status LEDs. The power button, for example, is colored red when playing a song in CD quality, in orange for sampling frequencies at 48kHz, in green for 96kHz, etc., coming to white for DSD files.
The integrated battery guarantees up to 10 hours of use, with a charging time (via microUSB) of four hours. The heart of the device consists of an Xilinx Artix-7 FPGA chipset, appropriately tuned. The technical specifications show an output at 35mW at 600 Ohm, or 720mW at 8 Ohm.
-Output Power @ 1kHz
-600 Ω 35mW
-8 Ω 720mW
-Output Impedance: 0.075 ohms
-Dynamic Range: 125dB
-THD @ 3v - 0.00017%