Key benefits Easy installation via a standard 2.543P interface for quick wiring to your amplifier board 2channel output for stereo sound enhancement, ideal for DIY speaker setups and professional sound systems Passive tone control with precise adjustment of overall volume, bass, and treble; no external power required Compact and lightweight design that fits easily into various DIY or upgrade projects; knob spacing 22.5 mm for comfortable operation Delivers clear highs and deep lows directly to your amplifier board, improving overall sound quality What it is Preamplifier PCB Volume Control Board with passive tone control 2channel output for stereo playback Designed for precise adjustment of volume, bass, and treble in your audio setup No external power required Specifications and features Interface: standard 2.543P header for easy installation Output: 2channel (stereo) Controls: volume, bass, and treble Type: passive preamplifier PCB with tone control Power: no external power required Physical design: compact and lightweight; knob spacing 22.5 mm for comfortable operation Typical applications DIY speaker builds and upgrades that require stereo enhancement and tone shaping Professional sound systems needing a compact, passive preamplifier with separate volume and tone controls DIY enthusiasts integrating precise volume, bass, and treble adjustment into amplifier projects or retrofits Compatibility and integration notes Uses a standard 2.54 mm pitch 3pin (2.543P) interface for broad compatibility with amplifier boards and DIY projects Passive design means no external power supply is needed, simplifying installation and reducing noise sources Suitable for applications where compact size and precise tone control are key factors This description preserves the original product's functions and specifications while presenting them in a clear, customerfriendly format with practical use cases.