Topping PRE900 Fully Balanced Preamplifier, 3 x XLR/6.35mm TRS Input XLR Balanced Pre-amp, Home Audio Preamp with Relay Volume Control, Three Gain Settings, 12V Trigger

TOPPING PRE900 Fully Balanced Preamplifier Focused on Music: Pre900 inherits the clean, flowing edge-line design of TOPPING's flagship 900 Series. Its lines are sharp yet restrained, creating a seamless visual harmony when stacked with the complete system-a clear expression of our music-first design philosophy. Powerful Headroom Pristine Signal: TOPPING Pre900 delivers an impressive output swing of up to 69 Vpp, with gain reaching 19.9 dB. Even during explosive transient peaks,it maintains ample headroom without clipping, bringing amore powerful and dynamic listening experience. With a noise floor of <0.3 uVrms*, Pre900 can fully amplify even the most delicate signals without adding audible noise, preserving the integrity, stability, and transparency of the sound. Focused Output for One Dedicated System: TOPPING Pre900 is equipped with only one pair of XLR balanced outputs to ensure the most optimized signal path. It also supports 12V trigger input and output, allowing it to power on and off in sync with your upstream and downstream devices for one-touch system control. Made for Your Flagship System: Together with the ultra-flagship TOPPING D900 DAC and A900 headphone amplifier, Pre900 completes a true flagship stack. From digital to analog, from signal processing to powerful drive, every stage is elevated-bringing you a Hi-End listening experience. By performance, measure result: Hear the source, not the preamp – with greater presence, tension, composure. 151dB SNR, THD<0.00003% (20-20kHz) Preferred safe volume: Set safe volume for Pre900. On power-on/input switch, volume auto-lowers to preset level, blocking loud bursts. Seamless Multi-Source Switch:3x stereo balanced combo ins (XLR/TRS) for pro gear/sources, with Neutrik combo sockets for stable, reliable connections to high-end systems. Responsive Control: 2.0" HD color display, 9 background colors; 3 touch buttons + multi-function knob; one-touch switch display modes (info/FFT/VU). Product Parameters Input: XLR, TRS THD+N @1kHz A-wt: 0.00005% THD @20-20kHz 90kBW: 0.00003% SNR @MAX OUT 1kHz A-wt: 151dB Dynamic Range @1kHz A-wt: 151dB Frequency Response: 20Hz-40kHz(±0.05dB 20Hz-100kHz(±0.1dB OutPut Level 69Vpp @G=L 65Vpp @G=M 65Vpp @G=H AP measured noise level @A-wt <0.7uVrms @G=L <1.2uVrms @G=M <2.5uVrms @G=H Actual noise level* @A-wt <0.3uVrms @G=L <0.9uVrms @G=M <2.3uVrms @G=H Channel Crosstalk @1kHz: -150dB Input Sensitivity 25.3Vrms @G=L 7.1Vrms @G=M 2.3Vrms @G=H Gain 0dB @G=L +10.4dB @G=M +19.9dB @G=H Input Impedance: 20kΩ Output Impedance: 100Ω Size: 33x20x5.7cm(WxHxD) Accessories List: 1x TOPPING PRE900 1x Remote Control 1x AC Power Cable 1x USB B Cable 1x User manual

• Full-Path Balanced Architecture: Pre900 features a four-channel reference-grade amplification circuit. It is not only fully balanced, but also implements true end-to-end differential design from input to output. Left and right channels are physically isolated to the highest degree, effectively suppressing noise and electromagnetic interference
• 0.1 dB Precision Relay Volume Control: Pre900 uses relay array combined with high-precision resistor network to achieve 1,000-step volume adjustments, with each step switching smoothly and naturally. Crosstalk is kept below -150 dB, ensuring that the left and right channels remain perfectly synchronized at any volume
• Multiple Sources Seamless Switching: Pre900 features three sets of stereo balanced combo inputs(XLR & TRS), offering broad compatibility with professional equipment and various audio sources. All input connectors use Neutrik combo sockets for stable, reliable connections, meeting the demands of high-standard audio systems
• Powerful Headroom Pristine Signal: It delivers an impressive output swing of up to 69 Vpp,with gain reaching19.9 dB. it maintains ample headroom without clipping, With a noise floor of <0.3 μVrms*,bringing a more powerful and dynamic listening experience
• Responsive Control: Equipped with a 2.0-inch high-definition color display and 9 selectable background colors, it adapts perfectly to your visual preferences.The three touch buttons on the right work seamlessly with the multi-function knob. You can also switch display modes with a single touch (playback information / FFT / VU meter)