Topping A70 Pro Preamp Headphone Amp Balanced XLR

Key Specifications & Features

• Fully balanced architecture with both XLR and RCA inputs/outputs.

• High input impedance (~20 kΩ) for strong compatibility with a wide range of DACs and sources.

• Massive power output: up to about 17 W into 16 Ω (balanced) and around 6 W into 16 Ω (single-ended).

• Ultra-low distortion: THD+N less than 0.000065% at 500 mW, 32 Ω.

• Dynamic range: up to roughly 147 dB.

• Ultra-low noise floor: under 0.2 µVrms in low-gain mode.

• R2R relay volume control: uses a resistor-ladder network instead of a typical potentiometer for more accurate and consistent volume adjustment, with memory presets.

• 12 V trigger input/output for linking with other audio gear.

• GND/LIFT switch to prevent ground loop noise.

• Full-color display with Aurora UI and touch-sensitive buttons.

• Dual-function design: can operate as both a headphone amplifier and a pre-amplifier for powered speakers or active monitors.

🎧 Why It’s Compelling for Audiophiles

• Immense power and flexibility: Capable of driving virtually any headphone, from sensitive IEMs to high-impedance planar models.

• Transparent performance: Balanced design, low noise, and distortion ensure clean and neutral sound reproduction.

• Precision control: R2R volume ladder gives fine-tuned steps and perfect channel balance even at low volume.

• Integration-ready: Balanced outputs, trigger ports, and preamp features make it suitable for complex home or studio setups.

• Noise management: High input impedance and ground-lift switch minimize unwanted hum or interference.