The recent customer asked about compatibility with STAX headphones and whether 700VRms would damage STAX headsets, we responded as follows:

The BIAS voltage of TOPPING EHA5 is set to standard 580V. It features real-time detection for different supply voltages internally. This protects the headphones from being damaged.

700Vrms output swing is different from the 580V bias voltage and doesn’t damage electrostatic headphones. And the highest voltage won’t be applied to the headphones unless the amp is pushed to do so.

• Exceptional noise control
• 146dB SNR
• Powerful 700Vrms and 2000Vp-p output swing
• 12V Trigger interface for easy on/off switching
• Pass-through function for seamless audio system switching