ITEM NAME:DC 10V-24V Low-pass Filter NE5532 Subwoofer Process Pre-Amplifier Preamp B YYC Descriptio n Description: The board features: 1. All components are selected as a new first-class product. The frequency adjustment capacitor is the original Philips CBB capacitor. The adjustment potentiometer is made of Taiwanese fully sealed type. The input and output terminals are made of pure copper terminals, and the wiring is very convenient. 2. The op amp is selected from Texas NE5532. The IC seat can be soldered at any time to change the op amp, and the effect brought by different op amps can be improved. 3, designed with LED indicators to monitor the power status in real time. 4. The PCB design of the board is simple and beautiful, and the wiring is reasonable, which makes the board have a very high signal-to-noise ratio and strong anti-interference ability. There is almost no noise near the horn when there is no signal input. Specifications: Color: picture color Power supply voltage: DC10-24V single power supply DC Frequency range: 22Hz-300Hz Audio input: mono or dual channel Audio output: mono PCB material: super hardness FR-4 fiberglass board Size: 7.8*3.2cm, thickness: 0.16cm Center distance of plate fixing hole: 7*2.4cmm, hole diameter: 0.32cm Potentiometer shaft center distance: 3.25cm Package Included: 1* Overweight Subwoofer Preamp Note: Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! DC 10V-24V Low-pass Filter NE5532 Subwoofer Process Pre-Amplifier Preamp Board.The op amp is selected from Texas NE5532. 1 Overweight Subwoofer Preamp. All components are selected as a new first-class product. The PCB design of the board is simple and beautiful, and the wiring is reasonable, which makes the board have a very high signal-to-noise ratio and strong anti-interference ability.