Flexible multicore microcontrollers
For professional multichannel USB audio
Low latency and timing determinism
Execute multiple real-time tasks simultaneously
LDO Linear RegULATORS
Precision power supply
Professional Audiophile Crystal Oscillator
Extremely low close-in phase noise
Very low rms phase jitter
Superior sound quality
High slew rate
THD + N, SNR, DNR, crosstalk and frequency response were measured.
USB ASIO Driver
Customised USB ASIO driver with Khadas PID from Thesyscon.
Professional Instrument's APx555 was used for tuning the Tone Board.
USB Audio Class 2
UAC2 (USB Audio Class 2) for high-res, bit-perfect, low loopback latency.
Upgradeable XMOS firmware ensures Tone devices are future-proofed.
Compare Tone Boards
Hear the high-fidelity difference
 iPhone support requires the USB-C to Lightning OTG (Apple C78-USBH) cable, normal Lightning charging cables will not work.
 Coaxial S/PDIF out requires use of a specialised firmware, and a Balanced RCA to Standard RCA converter cable.
Upgrade your device firmware
Odds and ends for a complete experience