Key Features:
- Low-Pass Filtering: Removes high-frequency sounds and vocals, enhancing deep bass response
- Designed for Active Subwoofers: Must be connected to a pure power amplifier board for sound output
- Single Power Supply: DC 10-24V, compatible with common amplifier power sources
- High-Quality Components:
- Philips CBB capacitors for frequency tuning
- Taiwanese-sealed potentiometers for precise control
- Pure copper terminals for easy wiring
- Texas Instruments NE5532 Op-Amp: Includes IC socket for easy op-amp swapping and customization
- LED Power Indicator: Monitors real-time power status
- Low Noise & High SNR: Optimized PCB layout ensures minimal interference and high signal quality
Technical Specifications:
- Frequency Range: 22Hz – 300Hz (adjustable)
- Audio Input: Mono or Stereo
- Audio Output: Mono
- PCB Size: 78mm × 32mm, Thickness: 1.6mm
- Mounting Hole Spacing: 70mm × 24mm, Hole Diameter: 3.2mm
- Weight: 30g
Important Usage Notes:
🚨 This is a subwoofer preamp board and will not produce sound on its own. âœ”ï¸ It must be connected to a pure power amplifier board to function. âœ”ï¸ The more powerful the amplifier, the stronger the bass effect.Why Choose This Preamp Board?
✔ DIY-Friendly Design – Single power supply for easier integration ✔ Superior Audio Performance – Enhances bass while eliminating unwanted noise ✔ High-Quality Components – Built for durability and optimal sound quality
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