All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
Fully Balanced Architecture & Independent Power Supplies – The Pre900 employs a true end-to-end differential design with physically isolated left/right channels, effectively eliminating noise and electromagnetic interference. Digital and analog circuits are powered separately, minimizing crosstalk at the source for an ultra-clean, pitch-black background and vivid musical details.
0.1dB Precision Relay Volume Control – A relay array combined with a high-precision resistor network delivers 1,000-step volume adjustment with seamless, natural transitions. Crosstalk is kept below -150dB, ensuring perfect left/right channel synchronization at any volume. Only the level changes—tonal quality remains completely consistent across the entire range.
Massive Headroom & Ultra-Low Noise – With an output swing up to 69Vpp and 19.9dB gain, the Pre900 handles explosive transient peaks without clipping. The noise floor is below 0.3μVrms, preserving even the most delicate signals while delivering a powerful, dynamic, and transparent listening experience.
Safe Volume Mode & Versatile Inputs – Set a preferred safe volume level (–80dB to 0dB, default –30dB). The unit automatically lowers volume on power‑up or input switching, protecting you from unexpected loud bursts. Three stereo balanced combo inputs (XLR & TRS) with Neutrik connectors offer broad compatibility with professional and home audio sources.
Flagship System Integration & Intuitive Control – Designed to complete the TOPPING 900 Series stack with the D900 DAC and A900 headphone amplifier. Features a 2.0‑inch high‑definition color display (9 selectable background colors), multi‑function knob with touch buttons, and an infrared remote control machined from solid aluminum. Also supports 12V trigger for one‑touch system power sync.