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Black desktop headphone amplifier with colour screen, volume knob, touch buttons, and multiple headphone outputs

Topping Inc.

Topping A70Pro Headphone Amplifier 17000mW Black 2 in 1 Accessory

SKU CH-A045-TDKYM

Fully balanced headphone amplifier delivers 17000 mW per channel with 147 dB dynamic range and ground-lift switch

  • 147 dB dynamic range from T'ang-ku-la three-stage feedback circuit
  • 17 000 mW per channel drives demanding headphones cleanly
  • 20 kΩ input impedance improves compatibility with source devices
  • Two gain settings match low-sensitivity over-ears and high-sensitivity IEMs
  • GND/LIFT switch eliminates ground-loop noise in multi-device setups

Fully Balanced Headphone Amplifier

The Topping A70Pro is a fully balanced headphone amplifier that delivers up to 17000mW per channel. It serves listeners who need high power for low-sensitivity over-ear headphones and a noise floor low enough for sensitive IEMs. The unit combines amplification with preamp outputs via RCA and XLR connectors.

Tang-ku-la Module and Sustained Output

The Tang-ku-la Module uses a three-stage feedback circuit that reduces noise and high-frequency distortion, pushing dynamic range to 147dB. An ultra-low noise input stage raises input impedance to 20kΩ for broad source compatibility. Two gain settings let the amplifier maintain clean output during long listening sessions without background hiss on IEMs.

Connections and Ground-Loop Handling

Rear-panel I/O includes RCA, XLR, TRS and EXT inputs plus 4.4mm, 6.35mm and 4-pin XLR headphone outputs. A front colour display with three touch buttons shows playback data, FFT or VU meters selectable via the volume knob. A GND/LIFT switch removes ground-loop noise when multiple devices are connected, and a 12V trigger enables remote power control.

Highlights

  • 147 dB dynamic range from T'ang-ku-la three-stage feedback circuit
  • 17 000 mW per channel drives demanding headphones cleanly
  • 20 kΩ input impedance improves compatibility with source devices
  • Two gain settings match low-sensitivity over-ears and high-sensitivity IEMs
  • GND/LIFT switch eliminates ground-loop noise in multi-device setups

Specifications

No published specifications for this item yet.

Questions about this item

How loud does the 17000 mW amplifier run when it powers demanding headphones all day?

The Tang-ku-la three-stage feedback circuit pushes dynamic range to 147 dB while keeping noise and high-frequency distortion low enough that even sensitive IEMs stay silent during extended sessions.

Which source connections must I already have to use the balanced and single-ended inputs?

The unit accepts RCA and XLR line-level signals, and its 20 kΩ input impedance ensures broad compatibility with DACs, preamps or interfaces you already own.

Will the 4.4 mm, 6.35 mm and 4-pin XLR headphone outputs work with my older headphones that only have a 6.35 mm plug?

Yes — the front-panel 6.35 mm jack drives legacy headphones directly, while the 4.4 mm and 4-pin XLR sockets serve balanced cables without adapters.

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