The Topping A70 Pro is an advanced headphone amplifier and preamplifier designed to deliver exceptional audio performance. It offers various input and output configurations, supporting both balanced and single-ended modes. The device exhibits an impressive total harmonic distortion plus noise (THD+N) of less than 0.000065% at 1kHz under various load conditions. The signal-to-noise ratio (SNR) reaches up to 147dB, ensuring high clarity and dynamic range across all output types. The A70 Pro can output substantial power, topping at 6000mW per channel at 16Ω in single-ended mode and reaching 17000mW per channel at the same load using a balanced configuration. Its frequency response extends from 20Hz to 40kHz, with minimal deviation, supporting a wide range of audio frequencies. Other specifications include a noise level of less than 0.7µVrms and impressive crosstalk performance of -133dB. The A70 Pro also offers multiple gain settings, allowing users to tailor output levels according to their specific needs, ensuring compatibility with a wide array of headphone impedances. A robust design ensures durability while maintaining a compact form factor for easy integration into various audio setups.
