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About this gear
The Questyle SIGMA Pro is a 2025 DAC/amplifier combo positioned as an accessible entry into Questyle's current-mode amplification circuitry, a design approach the brand has championed for its low-distortion, high-linearity signal path. At USD 899, it targets enthusiasts wanting a step up from budget desktop stacks without moving into flagship pricing.
About Questyle
Questyle has established itself as one of China's most technically ambitious high-end audio companies, earning international respect for headphone amplifiers and DACs that compete with — and often outperform — established Western brands at their price points. Founded in 2012 in Shenzhen by Jason Wan...
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