Product Description:
1. Adopt original NE5532.
2. The main circuit of electrolytic capacitor signal adopts Taiwan famous brand. The main filter capacitor adopts Japan Erkang capacity 2×1000UF, and adopts 1A and above rectifier bridge to ensure strong and continuous power support.
3. The resistor uses five-ring metal resistors, and the main circuit uses a five-ring metal film resistor with an accuracy of ±1% to ensure a good signal-to-noise ratio.
4. The left and right channel input coupling capacitors are connected by Siemens 1UF imported from Germany, and the treble is clearer and the sound is sweeter! High and low sounds are perfect!
5. 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.
6. With fully enclosed dust-proof potentiometer, the performance is more stable, more durable than ordinary potentiometer!
7. With gold-plated round hole IC holder, you can freely replace other op amp ICs according to your preferences.
8. The layout of the entire circuit board is quite rigorous and reasonable. The overall PCB trace is grounded at one point. 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.
Basic parameters:
1. LOW PASS crossover point, upper limit frequency adjustable button 50-150Hz
2. The switch is the subwoofer phase adjustment, the left side is positive (0 degrees); the right side is the reverse direction (180 degrees)
3. Input method: 2.0 audio input or 5.1 audio input
4. Potentiometer distance: 25MM
5. PCB size: 200*49MM
6. Power supply voltage: AC12V-0-AC12V or AC15V-0-15V
7. Potentiometer function: low frequency adjustment, subwoofer volume. CEN volume, SL SR volume, ML MR volume, master volume.
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}