TOPPING A900 Ultra-Flagship Headphone Amplifier A full range of headphone outputs with Remote Control Independent Preamplifier

The characteristics and performance of the all-new flagship HIFI independent headphone amplifier A900 designed by Tuopin

1. Tanggula Circuit Architecture: The Tanggula architecture adopts a brand new three-level feedback circuit (patented technology) to form a 6-channel fully differential balanced architecture, reducing noise and high-frequency distortion, with a dynamic range of 151dB and a full frequency THD (90kBW) of 0.00003%, reducing circuit heating.

2. Powerful output power: The headphone amplifier has a driving power of up to 22000mW (@ 16 Ω), which can provide ultra high power output.

3. Diverse interface design: There are three sets of balanced stereo composite interfaces on the back, equipped with a full ecological headphone output interface, 6 physical interfaces, supporting 4 mainstream headphone interface types, using high-quality sockets, and the output can be set to independent or simultaneous output.

4. Front stage output function: equipped with a front stage output interface and providing pure front stage output mode, THD+N<0.000055%， Can be used in conjunction with later stages to reproduce live music.

5. Convenient control experience: The 2-inch full-color screen displays playback information, and three touch buttons work together with the volume knob to quickly adjust settings. The knob can customize functions and switch display content with just one click. There are 9 background colors to choose from.

6. Fully balanced volume control: Adopting a relay volume control system with a fully balanced architecture, the channel crosstalk is reduced to -153dB, and high-precision volume adjustment is achieved in 0.5dB steps.

7. Isolation power supply design: Physically isolate the power supply system of digital processing circuits and analog amplification circuits to reduce interference and provide stable voltage.