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  • Questyle Sigma PRO - Black

Questyle Sigma PRO

Flagship Portable Bluetooth DAC with Headphone Amplifier

  • Patented Current Mode Amplifier with discrete balanced design
  • Peak output power >5V with 0.0002% distortion
  • Dual ESS9069 DAC chips with TTA three-tier decoding
  • Supports PCM768kHz and DSD512 decoding
  • Apple MFi certified for iPhone/iPad compatibility
  • Qualcomm Snapdragon Sound and Sony LDAC certified
  • 3.5mm, 4.4mm, & 6.35mm headphone output jacks
  • Manual gain control for personalized listening
  • 4300mAh battery with 12 hours playback
  • Dual USB-C ports for charging while listening
Black
Silver
Regular price $869.00
Sale price $869.00 Regular price
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  • Estimated Delivery:Jan 01 - Jan 05

Questyle Sigma PRO

Questyle Sigma PRO

Technical Specifications

Model
Questyle SIGMA Pro
DAC
Dual ESS ES9069Q (dual-mono)
USB Interface
XMOS XU316 β€’ UAC 2.0
Digital Inputs
USB (PCM 44.1–768 kHz/32-bit; DSD Native 64/128/256/512; DoP DSD64/128/256; MQA render & full decode)
Optical (PCM 44.1–192 kHz/24-bit) β€’ Coaxial (PCM 44.1–192 kHz/24-bit)
Analog Inputs
3.5 mm SE In (nominal 1 Vrms) β€’ 4.4 mm BAL In (nominal 2 Vrms)
Headphone Outputs
6.35 mm β€’ 3.5 mm β€’ 4.4 mm balanced
Output Power (HP)
1200 mW @ 32 Ξ© (BAL) β€’ 160 mW @ 300 Ξ© (BAL) β€’ 40 mW @ 300 Ξ© (SE)
Performance
THD+N 0.0002% @ 48 kHz/24-bit, 1 kHz sine β€’ SNR 120 dB β€’ FR 20 Hz–20 kHz (+0.8 dB)
Gain Control
Line & HP Out: L / H / S (Studio) β€’ IEM Out: L / H
Bluetooth
v5.4 β€’ Snapdragon Sound β€’ aptX Adaptive / aptX HD / LDAC / SBC / LE Audio
Recording
Stereo recording from analog inputs at 48 kHz/24-bit with live monitoring (USB Audio Class)
USB-C Ports
1Γ— Audio/Data (device-powered), 1Γ— Charge (5 V / 2 A), supports play-while-charging
Battery / Runtime
4300 mAh β€’ up to 12 h β€’ ~3 h charge time
Dimensions / Weight
Approx. 155.7 Γ— 85 mm β€’ ~330.8 g
System Support
Windows XP–11 (UAC2), macOS, Linux, Android, HarmonyOS, iOS/iPadOS (MFi licensed)

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