QM-2025 Tube Preamplifier
Precision tube preamp engineering from Dongguan Yunnuo Electronic Technology Co., Ltd. Hand-crafted for audiophiles seeking uncompromised sound quality.
Explore QM-2025 Capabilities
Discover the specifications and performance metrics that define the QM-2025 Tube Preamplifier's sonic excellence.
Output Performance
Precision-engineered for exacting gain control and optimal output performance, our amplification stages maintain absolute signal integrity throughout the entire audio chain — attenuating noise, eliminating distortion, and ensuring uncompromised transparency from input to output.
Signal Conditioning
Engineered to exacting standards, our advanced circuitry preserves signal integrity and ensures precise impedance matching across all connected devices — eliminating noise and distortion at the source to deliver audio reproduction that remains true to the original recording.
Tube Circuit Design
Our premium tube topology is engineered on decades of refined analog circuit design, delivering warm, natural sound reproduction with exceptional precision. Subtle vocal textures emerge with clarity, instrumentation gains genuine depth, and an openness is achieved that solid-state architectures seldom replicate. The outcome is measurably low distortion and a musical authenticity that honors the integrity of every recording.
Input Flexibility
RCA UNBALANCED:  9V rms | 100Ω | THD <0.005% | SNR >115dB | 10Hz-80kHz XLR BALANCED: 18V rms | 100Ω | THD <0.005% | SNR >120dB | 10Hz-80kHz TUBE OUTPUT:  8V rms | 100Ω | THD <0.5% | SNR >110dB | 10Hz-80kHz SUBWOOFER:  9V rms | 100Ω | THD <0.015% | SNR >115dB | 10Hz-160Hz
Precision tube design for discerning listeners
The QM-2025 combines analog warmth with meticulous engineering. Hand-selected tube circuits deliver smooth, detailed sound while advanced shielding minimizes noise. Built by YNhifi for audio professionals and enthusiasts who demand transparency without compromise.
Performance engineered for audio excellence
The QM-2025 delivers precision tube amplification with carefully tuned output stages and component quality that separates it from conventional preamplifiers.
43.5x10.5 34.2cm
Dimensions (W×H×D)
It's compact enough to slide right into your standard equipment rack or audio furniture — no custom mounting needed, no hassle.
11.5kg
Net Weight
Engineered for durability and precision handling, the quality is immediately apparent. Robust construction where structural integrity demands it, refined ergonomics where performance depends on it.
0.5W
Standby
Ultra-low noise floor preserves subtle audio details and delivers clean, transparent amplification — with a whisper-quiet standby power consumption of just 0.5W.
1=GND 2=Signal+ 3=Signal-
XLR Pin
Every QM-2025 features precision-engineered XLR connectors, with each unit undergoing comprehensive factory testing before leaving our Dongguan facilities.
Ready to experience tube preamplifier excellence?
Contact YNhifi today to order the QM-2025 or discuss your audio equipment needs with our team.