YJ 5.1 Preamplifier Tone adjused Completed board With NE5532 LOW PASS 50-150Hz Tone preamplifier

product details: The original NE5532 is used. The main circuit of electrolytic capacitor signal adopts Taiwan famous brand. The main filter capacitor adopts capacity of 2×1000UF, and adopts rectifier bridge of 1A and above to ensure strong and continuous power support. The resistor uses a five-ring metal resistor, and the main circuit uses a five-ring metal film resistor with an accuracy of ±1% to ensure a good signal-to-noise ratio. The left and right channel input coupling capacitors are coupled with German 1UF, and the treble is clearer and the sound is sweeter! High and low sounds are perfect! The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensures the good passing performance of the current. First-class PCB quality. With fully enclosed dust-proof potentiometer, the performance is more stable and more durable than ordinary potentiometers! With a gold-plated round hole IC holder, you can freely replace other op amp ICs according to your preferences. The layout of the entire circuit board is quite rigorous and reasonable, and the overall PCB trace adopts a grounding method. The work is stable and reliable, the low frequency is solid and solid, the signal-to-noise ratio is quite excellent, the dynamic range is wide, the details are clear, the transient response is excellent, and all kinds of music are played comfortably. It has a very good performance in the family's playback environment. Potentiometer function: low frequency adjustment, subwoofer volume. CEN volume, SL SR volume, M PCB size: 200*49MM Packing: 1pc YJ 5.1 Preamplifier Tone adjused Completed board With NE5532

• LOW PASS crossover point, upper limit frequency adjustable button 50-150Hz
• The switch is the subwoofer phase adjustment, the left side is positive (0 degrees); the right side is the reverse direction (180 degrees)
• Input method: 2.0 audio input or 5.1 audio input
• Power supply voltage: AC12V-0-AC12V or AC15V-0-15V
• Potentiometer distance: 25MM; <br/>PCB size: 200*49MM