
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
Precise gain control and output levels engineered to preserve every detail of the original signal — minimizing noise, eliminating distortion, and maintaining full audio transparency from input to output.
Tube Circuit Design
Premium tube topology draws on decades of analog circuit design to deliver warm, natural sound reproduction — the kind that brings out subtle textures in vocals, depth in instrumentation, and an openness that solid-state designs rarely match. The result is exceptionally low distortion and a musicality that feels as organic as the recordings themselves.
Input Flexibility
Multiple input options — including digital coaxial, optical, and USB — support a wide range of audio sources, from CD transports to streaming devices, making it easy to fit into any existing high-end system without compromise.
Compact Dimensions
Thoughtfully designed to fit standard audio racks, the compact footprint leaves room for other components without cutting corners on materials, construction, or sonic performance.
Signal Conditioning
Advanced circuitry ensures clean signal paths and optimal impedance matching for every connected device, minimizing noise and distortion at the source so the audio reaches your ears exactly as it was intended.
Build Quality
Precision engineering and premium components are at the core of everything YNhifi builds. With nearly three decades of audio manufacturing expertise, the team behind every amplifier, CD player, and streaming device brings a level of craftsmanship that only comes from years of working with the world's leading audio brands.
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.
