Features Effortless Compatibility with NE5532: This single power pre-level tone board seamlessly integrates with NE5532 amplifiers, enhancing your o experience with minimal setup High-Quality Fever Class Design: Featuring an amplifier front plate built for superior sound quality, this module effectively manages high, medium, and low volume for rich o performance Versatile Voltage Support: Compatible with DC 12-24V and AC 8-19V, this power amplifier board delivers high performance while adhering to strict quality standards for reliable Features: 1、Single power pre-level tone board supports NE5532 amplifier, easy to use in the practical life. 2、Amplifier front plate is in fever class, and it works as a front module of high, medium and low volume. 3、Support DC 12-24V / AC 8-19V, this power amplifier board is entitled with high performance according to strict rule. 4、Tone board installation is simple, and it does not require particularly complicated s. 5、Volume adjustment includes treble, midrange, bass and total volume, which can be practical. Specification: Item Type: Tone board Product Model: JY-A551 Input Voltage: DC 12-24V (AC 8-19V) Volume Adjustment: Treble, midrange, bass, total volume Package List: 1 x Tone Board Package List 1 x Tone Board