Topping EHA5 Electrostatic Amplifier

EHA5 is TOPPING's first electrostatic headphone amplifier, which supports all kinds of five pin (pro) electrostatic headphones. EHA5 adopts a new ID design, with 146dB ultra-high dynamic range and output voltage up to 700Vrms, far exceeding other electrostatic amps, so it would perform better when paired with electrostatic headphones. EHA5 supports XLR, TRS, RCA inputs and two steps of gain setting, and supports shutdown pass-through. In addition, EHA5 supports 12V Trigger input, which can be switched on and off synchronously with other devices that support this function.

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 and which in turn could damage your headphones if pushed into distortion.

Unleash Your Electrostatic Headphones' Full Potential with EHA5

Experience the ultimate audio performance with the EHA5 Electrostatic Headphone Amplifier, specifically designed for electrostatic headphone owners who demand the very best from their gear. Electrostatic headphones offer unparalleled sound quality, but often their true capabilities remain untapped due to the limitations of standard amplifiers. The EHA5 outshines the competition by delivering enhanced audio details, a substantial power output, and convenient features tailored to make the most out of your listening sessions with your electrostatic headphones.

Outstanding noise control

The EHA5 boasts an impressive 146dB SNR, ensuring that any audible noise is eliminated. With noise levels under 35uVrms @G=L and under 80uVrms @G=H, you'll enjoy crystal-clear sound without any distractions.

Impressive power output

The EHA5 delivers a remarkable 700Vrms and 2000Vp-p output swing, significantly improving upon the competition. This immense power allows your electrostatic headphones to reach their full potential.

12V trigger interface

Featuring a 12V Trigger input interface, the EHA5 can easily connect with other devices for seamless on/off switching. Say goodbye to the hassle of manually powering devices on and off one by one.

Pass-through function

The EHA5 includes a pass-through function, allowing the input signal to directly reach the corresponding balanced and single-ended outputs when the front panel is switched off. This feature is perfect for users who want to easily switch between electrostatic headphones and other audio systems when their DAC has a preamp function.

Product Highlights

• 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

Specs

• THD+N @1kHz (A-wt)
  • SE: <0.0009%
  • BAL: <0.0009%
• THD+N @20kBW(No-wt) 
  • SE: <0.07%
  • BAL: <0.05% 
• SNR @ MAX OUT
  • SE: 140dB
  • BAL: 146dB
• Dynamic range
  • SE: 140dB
  • BAL: 146dB
• Frequency response: 20Hz-40kHz (±2.5dB)
• Noise (A-wt)
  • SE: <35uVrms low gain, <80uVrms high gain
  • BAL: <35uVrms low gain, <80uVrms high gain
• Channel crosstalk: -89dB
• Input sensitivity
  • SE: 10Vrms low gain, 2Vrms high gain
  • BAL: 20Vrms low gain, 3.9Vrms high gain
• Gain
  • SE: 36.8dB low gain, 50.8dB high gain
  • BAL: 30.9dB low gain, 44.9dB high gain
• Channel balance: 0.5dB
• Output level: 700Vrms
• Bias voltage: DC580V
• Shipped weight: 5.5lbs
• Dimensions: 9.17" x 6.8" x 3.6" (23.3 x 17.3 x 9.3cm)

What's Included

• EHA5 Electrostatic Headphone Amplifier
• Power adapter
• Power plug
• User manual
• Warranty card