Low Pass Filter Bass Subwoofer Preamplifier Tone Board Frequency Adjustable Diy

Description

Low Pass Filter Bass Subwoofer Preamplifier Tone Board Frequency Adjustable Diy
Description:
Brand Name: Aiyima
Basic parameters:
1. LOW PASS crossover point, upper limit frequency adjustable button 50-150Hz
2. The switch is the subwoofer phase adjustment (+-, -+), (0 degrees) (180 degrees)
3. Input method: 5.1 audio input
4. PCB size: 254*43MM
5. Power supply voltage: AC15V-0-AC15V or AC20V-0-20V
6. Potentiometer function: low-frequency adjustment, subwoofer volume. CEN volume, SL SR volume, ML MR volume, master volume.
Feature:
1. Adopt original NE5532.
2. Electrolytic capacitor signal main circuit adopts Taiwan famous brand, main filter capacitor adopts Japan Erkang capacity 2×1000UF, adopts 2A 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 imported 1UF, and other high-frequency filter capacitors are imported from Siemens. The treble is clearer and the sound is sweeter! High and low sounds are perfect!
5. PCB adopts a 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and tin-spraying process to ensure the good passing performance of large and small currents. First-class PCB quality.
6. With a fully enclosed dust-proof potentiometer, the performance is more stable, and more durable than an ordinary potentiometer!
7. With a 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, 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.
Package Include:
1 x  Low Pass Filter Bass Subwoofer