Topping A900 – Headphone Amplifier with Record-Breaking Performance

Topping has released a truly powerful headphone amplifier – the Topping A900 model develops 2 x 22 W of power into a 16 Ohm load and achieves revolutionary performance – a dynamic range of 151 dB, a signal-to-noise ratio of 151 dB, and a THD+N distortion level across the entire frequency band (90 kHz BW) of 0.00003%!

The Topping A900 features a six-channel fully differential balanced T’ang-ku-la architecture based on a three-stage feedback topology. Thanks to a fully balanced volume control system on electromagnetic relays, the amplifier allows you to precisely control the volume level, keeping distortion at a minimum. The headphone amplifier is capable of providing a powerful output signal even when working with headphones with an impedance of 300 – 600 Ohms.

The Topping A900 is equipped with a built-in fully balanced relay volume control. It effectively reduces crosstalk to -153 dB, providing accurate volume control in 0.5 dB steps. The Topping A900 has a preamplifier functionality, which allows it to be used as part of a full-size stereo system. Headphones can be connected via a 6.35 mm jack, a balanced Pentaconn 4.4 mm, two 4-pin XLR connectors and two 3-pin XLR connectors. The Topping A900 balanced headphone amplifier is available for sale at a suggested retail price of $ 1,199.