Description
XH-A901 Pre-Amp Audio Tone Controller Module with (Volume + Treble + Mid + Bass Control)
Upgrade your audio system with the XH-A901 Pre-amplifier Audio Tone Controller Board, designed for clear sound shaping and precise control. This compact yet powerful module comes with 4 independent B50K rotary knobs, allowing you to fine-tune your audio exactly the way you like.
🎛️ Four Knobs & Their Functions (As Printed on the Board)
From left to right, the POT functions are clearly marked on the PCB:
- 🔊 Volume (音量) – Overall sound level control
- 🎶 Treble (高音) – Adjusts high-frequency clarity and sharpness
- 🎼 Mid (中音) – Controls vocal presence and mid-range balance
- 🔉 Bass (低音) – Enhances low-frequency depth and punch
➡️ All knobs use B50K potentiometers for smooth and reliable adjustment.
⭐ Key Features
- ✅ High-quality pre-amplifier tone control module
- 🎛️ 4-knob independent control: Volume, Treble, Mid, Bass
- 🔧 B50K rotary potentiometers for precise tuning
- 🔊 Low noise & stable performance
- ⚡ Simple VCC & GND power input
- 🔌 Dedicated audio input & output connectors
- 📐 Compact PCB design – easy to fit in enclosures
- 🛠️ Ideal for DIY & repair projects
📋 Technical Specifications
| Parameter | Details |
|---|---|
| Model | XH-A901 |
| Type | Pre-Amplifier Audio Tone Controller |
| Number of Knobs | 4 |
| Knob Functions | Volume, Treble, Mid, Bass |
| Potentiometer Value | B50K (All 4 knobs) |
| Audio Input | Left (L), Right (R), Ground (G) |
| Audio Output | Left (L), Right (R), Ground (G) |
| Power Input | VCC, GND |
| Board Type | Dual-channel (Stereo) |
| Mounting | PCB mounting holes provided |
| Usage | Audio signal conditioning (Pre-amp stage) |
🔧 Applications
- 🔊 DIY audio amplifier projects
- 🎵 Home audio systems
- 🎚️ Active speaker tone control
- 🔧 Amplifier repair & modification
- 📻 Bluetooth / AUX audio systems
- 🎙️ Small mixer or pre-amp setups
💡 Why Choose XH-A901?
- Easy to use even for beginners
- Gives full control over sound quality
- Perfect balance between price, performance & size
- Widely used by technicians, hobbyists & DIY audio lovers
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