1pc PT2399 digital microphone amplifier board (7V–24V) — plate reverb preamplifier reverberator for karaoke and vocal applications Why you need it Adds a warm, spacious platestyle reverb and preamplification to a microphone signal, improving vocal presence for karaoke, small PA systems, home studios, and DIY projects. Uses the PT2399 digital delay/reverb IC to deliver familiar vintagestyle digital reverb/echo character that blends well with voice. Wide operating voltage (7V to 24V) provides flexible powering options for integration into different systems and projects. Key benefits Enhanced vocal sound: Provides reverb and preamp gain to make vocals fuller and more professional without a large external effects rack. Easy integration: Boardlevel module suitable for adding reverb/preamp functionality to mixers, amplifiers, microphone preamps, or custom builds. Versatile power range: Operates across 7V–24V, allowing use with many common power supplies and battery setups. Main features and attributes Model/chip: PT2399based digital reverb/delay circuit. Functionality: Microphone preamplifier with platestyle reverb/reverberator and digital delay characteristics. Quantity: 1pc board. Power: Operates from 7V up to 24V DC (observe correct polarity and adequate current for your build). Application focus: Karaoke, microphone preamp enhancement, reverberation for vocals and small PA systems. Form factor: Boardlevel module designed for installation or integration into electronic audio projects (compact PCB format). Typical use cases Home karaoke systems: Install the board to add adjustable plate reverb to a home karaoke amplifier or mixer to improve vocal ambiance and enjoyment. Small live/PA setups: Integrate the module into microphone preamps for small venue performances to add naturalsounding reverb without bulky rack effects. DIY audio projects and repairs: Use the PT2399 board to add or reverb/preamp functionality in DIY pedals, tabletop mixers, or to /upgrade older karaoke plates and microphone amplifier units. Compatibility and integration notes Designed for boardlevel integration; confirm wiring, input/output levels, and power polarity before connecting to other equipment. Works when paired with appropriate microphone preamp stages, mixers, or amplifier inputs; levelmatching and basic filtering may be required depending on your system. The PT2399 chipset provides characteristic digital reverb/delay behavior—suitable for vocal ambiance but may not replicate end studio algorithms. What's included One (1pc) PT2399 digital microphone amplifier/reverb board (as specified in the product title). This module is intended for users who need a compact, PT2399based reverb and preamplifier solution that runs from 7V to 24V and integrates into karaoke systems, small PA setups, or DIY audio projects.