Some or all Variants are In-Stock

In Stock and Ready to Ship

Ships in 1 to 3 business days. Monday to Friday, except bank holidays. Subject to stock availability and security checks.

  • Questyle Sigma PRO - Black
  • Questyle Sigma PRO - Silver
  • Questyle Sigma PRO - Black with leather case
  • Questyle Sigma PRO - Silver with leather case

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
Black with leather case
Silver with leather case
Regular price $1,198.00
Sale price $1,198.00 Regular price
Unit price
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VAT and Duties Included for UK and Eligible EU Customers.

If you are outside the UK or EU, the price does not include any taxes. Local taxes and import duties will be extra. They will be raised by the local authorities and billed directly to the customer.

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Questyle Sigma PRO

Questyle Sigma PRO

Technical specifications

Model
Questyle SIGMA Pro
DAC
Dual ESS ES9069Q (dual-mono)
USB Interface
XMOS XU316 • 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) • Coaxial (PCM 44.1–192 kHz/24-bit)
Analog Inputs
3.5 mm SE In (nominal 1 Vrms) • 4.4 mm BAL In (nominal 2 Vrms)
Headphone Outputs
6.35 mm • 3.5 mm • 4.4 mm balanced
Output Power (HP)
1200 mW @ 32 Ω (BAL) • 160 mW @ 300 Ω (BAL) • 40 mW @ 300 Ω (SE)
Performance
THD+N 0.0002% @ 48 kHz/24-bit, 1 kHz sine • SNR 120 dB • FR 20 Hz–20 kHz (+0.8 dB)
Gain Control
Line & HP Out: L / H / S (Studio) • IEM Out: L / H
Bluetooth
v5.4 • Snapdragon Sound • 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
1× Audio/Data (device-powered), 1× Charge (5 V / 2 A), supports play-while-charging
Battery / Runtime
4300 mAh • up to 12 h • ~3 h charge time
Dimensions / Weight
Approx. 155.7 × 85 mm • ~330.8 g
System Support
Windows XP–11 (UAC2), macOS, Linux, Android, HarmonyOS, iOS/iPadOS (MFi licensed)

Shipping and Returns

RETURNS

Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):

  • Must be returned in like-new factory condition 
  • Must include all original packaging and accessories
Please note that the return shipping cost is to be paid by the customer.

Read our full Returns, Warranty & Terms of service by clicking here

SHIPPING

We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.

Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.

For More information about our Shipping Policy please click here

Warranty

Products purchased from Elise Audio are supplied with a manufacturer warranty that is specified on the product page on our website. Most products come with a 1Y manufacturer warranty (or 3 months for B-grade, open box, refurbished, ex-demo and second hand items). The manufacturer's warranties are limited to physical defects in the materials, parts and workmanship used in making the product. Abnormal conditions, deliberate abuse and damage due to accidents, operator's error, or unauthorized service attempts are excluded from any warranty claims. Faulty goods returned under the manufacturers warranty are to be returned to Elise Audio at the cost of the customer. Elise Audio will cover the cost of shipping the repaired or replacement product back to the customer.
Model
Questyle SIGMA Pro
DAC
Dual ESS ES9069Q (dual-mono)
USB Interface
XMOS XU316 • 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) • Coaxial (PCM 44.1–192 kHz/24-bit)
Analog Inputs
3.5 mm SE In (nominal 1 Vrms) • 4.4 mm BAL In (nominal 2 Vrms)
Headphone Outputs
6.35 mm • 3.5 mm • 4.4 mm balanced
Output Power (HP)
1200 mW @ 32 Ω (BAL) • 160 mW @ 300 Ω (BAL) • 40 mW @ 300 Ω (SE)
Performance
THD+N 0.0002% @ 48 kHz/24-bit, 1 kHz sine • SNR 120 dB • FR 20 Hz–20 kHz (+0.8 dB)
Gain Control
Line & HP Out: L / H / S (Studio) • IEM Out: L / H
Bluetooth
v5.4 • Snapdragon Sound • 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
1× Audio/Data (device-powered), 1× Charge (5 V / 2 A), supports play-while-charging
Battery / Runtime
4300 mAh • up to 12 h • ~3 h charge time
Dimensions / Weight
Approx. 155.7 × 85 mm • ~330.8 g
System Support
Windows XP–11 (UAC2), macOS, Linux, Android, HarmonyOS, iOS/iPadOS (MFi licensed)
RETURNS

Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):

  • Must be returned in like-new factory condition 
  • Must include all original packaging and accessories
Please note that the return shipping cost is to be paid by the customer.

Read our full Returns, Warranty & Terms of service by clicking here

SHIPPING

We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.

Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.

For More information about our Shipping Policy please click here

Products purchased from Elise Audio are supplied with a manufacturer warranty that is specified on the product page on our website. Most products come with a 1Y manufacturer warranty (or 3 months for B-grade, open box, refurbished, ex-demo and second hand items). The manufacturer's warranties are limited to physical defects in the materials, parts and workmanship used in making the product. Abnormal conditions, deliberate abuse and damage due to accidents, operator's error, or unauthorized service attempts are excluded from any warranty claims. Faulty goods returned under the manufacturers warranty are to be returned to Elise Audio at the cost of the customer. Elise Audio will cover the cost of shipping the repaired or replacement product back to the customer.

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