Questyle Releases SIGMA Pro: Leading DAC with Recording Capabilities

By HiFi Editorial26 November 2025

Key Highlights

Questyle will release the high-end portable DAC/headphone amplifier "SIGMA Pro" on November 28, with pre-orders starting November 21.
Featuring dual ESS ES9069Q DACs and TTA decoding, it achieves 25Vp-p output and supports high-impedance headphones.
Equipped with XMOS XU316 USB interface, it supports PCM 768kHz/32bit, DSD 512, MQA, and various Bluetooth codecs.

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Jun 2025Nov 2025