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

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