The Tone2 Pro's aluminum enclosure incorporates a hybrid digital/analog volume control knob, allowing you to rely entirely on analog signal attenuation for accurate sound reproduction. Other additions to the Tone2 Pro include a 4.4mm balanced headphone jack in addition to the standard 3.5mm single-end jack. The OPA1612 was selected because it provides superior audio quality and excellent distortion characteristics THD + noise is below 0.00008% throughout the audio range (20Hz to 20kHz).

This 3-stage amplification pathway enables Tone2 Pro to drive a wide range of demanding audiophile-grade headphones with impedances of up to 150 ohms. ESS ES9038Q2M DAC has been paired with four powerful OPA1612 operational amplifiers and three buffer amplifiers. Tone2 Pro is our second-generation Tone Board from Khadas that incorporates a variety of user feedback from our first-gen product, the Tone1. Linear Power Supply - Tone2 Pro has a second USB-C (I2S) port that supports 5V linear power supplies for ultra-clean signal-to-noise ratios.

Hardware MQA Decoding - XMOS XU216 processor for full MQA decoding, enabling next-gen 'original master quality' web streaming and audio playback.īalanced RCA - Next-generation 'balanced RCA line-out' with 3-pin output, sets a new interface standard for the Hi-Fi industry. High Performance - Up to 32bit 384KHz sample rate, bit-perfect DSD512, and -118dB THD+N (line-out). DAC + Headphone Amplifier - Tone2 Pro combines the ESS ES9038Q2M with x4 OPA1612 operational amplifiers that deliver superior audio quality.

Khadas tone2 pro