XHA902 Preamplifier Board Key benefits Wide operating voltage: accepts DC 12–30 V, giving flexible powersupply options for different amplifier systems. Lownoise performance: built around the NE5532 dual op amp for a reduced noise floor and cleaner signal amplification. Improved output quality: NE5532based design delivers stable, lowdistortion output suitable for feeding power amplifiers or recording equipment. Broad compatibility: designed as a preamplifier stage for a wide range of amplifiers and audio systems, making it suitable for integration into existing setups. What it does and why you need it Provides a dedicated preamplifier stage to increase signal level and improve signaltonoise ratio before the power amplifier. Reduces background hiss and unwanted noise, so quieter passages and finer detail in music are preserved. Stabilizes and conditions linelevel signals for consistent performance across sources and amplifier types. Important attributes Function: preamplifier board for signal gain and conditioning. Power: DC 12–30 V input range for flexible powering. Core component: NE5532 performance op amp for low noise and reliable output. Performance: lower noise floor and improved output quality compared with many similar opamp based preamp modules. Practical applications Home audio: use as a linestage preamp to improve clarity and dynamics feeding a power amp in a stereo system. DIY and repairs: integrate into amplifier projects or aging preamp stages to restore cleaner gain and lower noise. Small PA or studio setups: serve as a compact preamplifier module to boost and clean linelevel signals before mixing or amplification. Technical note Model: XHA902 preamplifier board, using NE5532 op amp. Power supply requirement: DC 12–30 V. Installation and integration tips Match the board's gain and input/output wiring to your amplifier or source equipment for results. Ensure a stable DC supply within the 12–30 V range to maintain lownoise operation and consistent performance.