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  • Thyris Electronics HAS-0R - Silver
  • Thyris Electronics HAS-0R - Black

Thyris Electronics HAS-0R

Flagship Portable Headphone Amplifier

  • Patented ground-sensing technology for ultra-low crosstalk (-100dB or less)
  • Ultra-low distortion: THD 0.00005% or less
  • Ultra-low output impedance: 100mΩ or less
  • SNR 120dB or more with battery-powered operation
  • USB Type-C external power with automatic battery management
  • Ideal for binaural recordings and spatial audio monitoring
  • Made-to-order with 2-3 month lead time
Silver
Black
Regular price £749.00
Sale price £749.00 Regular price
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Thyris Electronics HAS-0R

Thyris Electronics HAS-0R

This new flagship headphone amplifier utilizes patented ground-sensing technology to achieve ultra-low crosstalk of -100dB or less (*), despite using a standard 3.5mm 3-pole unbalanced connection.

Unlike balanced (BTL) connections, there is no increase in output impedance, ensuring excellent performance even with conventional headphones using standard 3.5mm 3-pole plugs.

Distortion remains extremely low even under low-impedance loads. Combined with superior channel separation, this amplifier is ideal for monitoring binaural recordings and spatial audio—which require high-precision reproduction—as well as for use as a reference amplifier for measuring headphones and other equipment.

To prevent unwanted ground loops and signal-to-noise (S/N) degradation caused by power connections, the unit supports battery-powered operation. External power can also be supplied via USB Type-C when necessary. An internal semiconductor switch automatically manages the transition to external power and ensures the battery is charged safely, allowing you to use the device without worrying about battery degradation.

Notes

  • *Crosstalk varies significantly depending on the characteristics of the earphone cable. Measured using FRA5097.

  • *With the exception of dedicated accessories, 3.5mm 4-pole plugs cannot be used.

  • *Actual values measured using the THD mode of a VP-7725A.

Technical specifications

Ultra-low Crosstalk
-100dB or less (32Ω load, 1kHz)*
Ultra-low Distortion
THD 0.00005% or less (32Ω, 1kHz, 2Vrms, Unweighted, 10th HD)*
Ultra-low Output Impedance
100mΩ or less
Ultra-low Noise
SNR 120dB or more (2Vrms, A-Weighted)
Key Technology
Patented ground-sensing technology for ultra-low crosstalk using standard 3.5mm 3-pole unbalanced connection
Power Supply
Battery-powered operation with USB Type-C external power support; automatic internal switch for transition and safe charging
Ideal Applications
Binaural recordings, spatial audio monitoring, reference amplifier for headphone measurements
Notes
*Crosstalk varies depending on earphone cable characteristics. Measured using FRA5097.
*3.5mm 4-pole plugs cannot be used except dedicated accessories.
*THD values measured using VP-7725A THD mode.

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.

This new flagship headphone amplifier utilizes patented ground-sensing technology to achieve ultra-low crosstalk of -100dB or less (*), despite using a standard 3.5mm 3-pole unbalanced connection.

Unlike balanced (BTL) connections, there is no increase in output impedance, ensuring excellent performance even with conventional headphones using standard 3.5mm 3-pole plugs.

Distortion remains extremely low even under low-impedance loads. Combined with superior channel separation, this amplifier is ideal for monitoring binaural recordings and spatial audio—which require high-precision reproduction—as well as for use as a reference amplifier for measuring headphones and other equipment.

To prevent unwanted ground loops and signal-to-noise (S/N) degradation caused by power connections, the unit supports battery-powered operation. External power can also be supplied via USB Type-C when necessary. An internal semiconductor switch automatically manages the transition to external power and ensures the battery is charged safely, allowing you to use the device without worrying about battery degradation.

Notes

  • *Crosstalk varies significantly depending on the characteristics of the earphone cable. Measured using FRA5097.

  • *With the exception of dedicated accessories, 3.5mm 4-pole plugs cannot be used.

  • *Actual values measured using the THD mode of a VP-7725A.

Ultra-low Crosstalk
-100dB or less (32Ω load, 1kHz)*
Ultra-low Distortion
THD 0.00005% or less (32Ω, 1kHz, 2Vrms, Unweighted, 10th HD)*
Ultra-low Output Impedance
100mΩ or less
Ultra-low Noise
SNR 120dB or more (2Vrms, A-Weighted)
Key Technology
Patented ground-sensing technology for ultra-low crosstalk using standard 3.5mm 3-pole unbalanced connection
Power Supply
Battery-powered operation with USB Type-C external power support; automatic internal switch for transition and safe charging
Ideal Applications
Binaural recordings, spatial audio monitoring, reference amplifier for headphone measurements
Notes
*Crosstalk varies depending on earphone cable characteristics. Measured using FRA5097.
*3.5mm 4-pole plugs cannot be used except dedicated accessories.
*THD values measured using VP-7725A THD mode.
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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