XH A902 preamplifier board Stable performance and long service life achieved with reliable electronic components Uses a purity chip offering a cleaner signal than many similar op amp configurations NE5532 performance chip delivers low noise and strong output drive Wide input voltage range of DC 12 to 30 V for flexible power options Why you need it Provides clean, low noise preamplification for audio signals Simple to integrate into DIY audio projects and standard preamp stages Robust operation across a range of power supplies without sacrificing performance Compatibility and design notes Board level preamplifier module suitable for integration into typical audio circuits requiring a preamp stage Compatible with DC supplies in the 12 to 30 V range Designed for stable operation in various environments and applications Use scenarios DIY home stereo preamp: connect to a DAC or line source, power from a 12 V supply, and feed into a power amplifier for clearer, quieter amplification Small recording or live sound preamp: use as a clean input stage to improve signal quality before processing or amplification Car or portable audio projects: run from a vehicle or battery powered 12 V to 30 V supply to preprocess line level signals in compact systems