1. Introduction
The WEAH-242 is a high-quality 2-way audio speaker passive crossover designed to enhance your audio system's sound performance. It precisely divides audio signals into high and low frequencies, directing them to the appropriate speaker drivers (tweeter and woofer/mid-bass speaker). Built with premium materials and featuring adjustable frequency points, this crossover offers exceptional sound quality and convenient installation.
Video 1: WEAH-242 Audio Crossover Product Overview
2. Specifications
| Feature | Specification |
|---|---|
| Brand Name | WEAH |
| Model Number | WEAH - 242 |
| Item Type | Speaker Active Components |
| Divider Type | 2 Way |
| Output | 1 Tweeter + 1 Woofer |
| Max Power | 400 Watts |
| Impedance | 2~16Ω |
| Frequency Point | 9 Optional Frequency Points |
| Size (L*W*H) | 110*88*28 mm |
| Material | Metal |
| Package | No |
| Origin | Mainland China |

Image 2: Dimensions of the WEAH-242 Crossover Board (110mm x 88mm x 28mm)
3. Component Overview
The WEAH-242 crossover board is built with high-quality components to ensure optimal audio performance. Key components include:
- Inductors: High-temperature resistant for stable performance.
- Capacitors: Special audio-grade capacitors (e.g., MKP capacitors) for clear signal processing.
- Adjustment Switches: Two switches for fine-tuning treble and bass frequencies.
- Connection Terminal Blocks: Six solderless terminal blocks for easy and secure wiring.

Image 3: Annotated diagram showing Inductors, Special Audio Large Capacitors, MKP Capacitors, Connection Terminal Blocks, Treble Adjustable Switch, and Medium/Bass Adjustable Switch.
4. Setup and Wiring
The WEAH-242 crossover is designed for convenient installation using its 6 solderless terminal blocks. Ensure all connections are secure before powering your audio system.
4.1 Basic Connection Diagram
Connect your power amplifier, tweeter, and woofer/mid-bass speaker to the crossover board as shown in the diagram below. Pay close attention to polarity (+ and - terminals).

Image 4: Basic wiring diagram showing connections from a Power Amplifier to the Crossover's INPUT, and from the Crossover's TREBLE and BASS outputs to a Tweeter and Woofer/Mid-bass Speaker, respectively. Red wires indicate positive (+), black wires indicate negative (-).
4.2 Speaker Cabinet Integration
For integration into a speaker cabinet, follow the connection principles. The crossover will manage the frequency distribution to your individual drivers.

Image 5: Wiring diagram illustrating how to connect the crossover to a power amplifier and a speaker cabinet containing both a treble (tweeter) and bass (woofer) driver.
4.3 Circuit Diagram
For advanced users or troubleshooting, the internal circuit diagram provides a detailed view of the crossover's design.

Image 6: Circuit Diagram of the WEAH-242, showing the internal connections of capacitors (C), inductors (L), and switches (K) for the woofer/mid-bass speaker and tweeter outputs.
5. Operating Instructions
The WEAH-242 features two adjustment switches, one for treble and one for bass, each offering three adjustable gears (A, B, C). This allows for a total of 9 different sound quality combinations to fine-tune your audio experience.

Image 7: Close-up of the white (treble) and black (bass) adjustment switches on the WEAH-242 crossover board.
5.1 Bass Frequency Adjustment (Black Switch)
- Position A: The woofer produces bass, but not subwoofer frequencies below 100Hz.
- Position B: The frequency of the woofer is above 300Hz.
- Position C: The frequency of the woofer is above 400Hz.
5.2 Treble Frequency Adjustment (White Switch)
- Position A: Treble capacitance is 3.4uF, tweeter frequency is above 2kHz (Mid-treble).
- Position B: Treble capacitance is 1.2uF, tweeter frequency is above 7kHz (Close to super treble).
- Position C: Treble capacitance is 2.4uF, tweeter frequency is above 3kHz (Treble).
6. Available Styles and Capacitance
The WEAH-242 crossover is available in four styles, primarily differing in their capacitance values, which can influence the sound characteristics.
6.1 WEAH-242 Style A
Capacitance: 260uF + 115uF + 25uF. This style is noted for producing a significantly noticeable change in sound.

Image 8: WEAH-242 Style A Crossover Board.
6.2 WEAH-242 Style B
Capacitance: 170uF + 120uF + 68uF. The sound changes are generally observed with this style.

Image 9: WEAH-242 Style B Crossover Board.
6.3 WEAH-242 Style C
Capacitance: 130uF + 80uF + 68uF. The sound changes with this style are not very noticeable and primarily depend on the specific instruments being played.

Image 10: WEAH-242 Style C Crossover Board.
6.4 WEAH-242 Style D
Capacitance: 100uF + 72uF + 25uF. Similar to Style B, the sound changes are generally observed and mainly depend on the different instruments.

Image 11: WEAH-242 Style D Crossover Board.
7. Maintenance
- Keep the crossover board in a dry environment to prevent moisture damage.
- Avoid exposing the board to extreme temperatures or direct sunlight.
- Clean the board gently with a soft, dry cloth. Do not use liquids or abrasive cleaners.
- Ensure all connections remain secure over time.
8. Troubleshooting
8.1 No Sound Output
- Check all wiring connections from the amplifier to the crossover and from the crossover to the speakers. Ensure correct polarity.
- Verify that the amplifier is powered on and functioning correctly.
- Test speakers individually to ensure they are not faulty.
8.2 Distorted Sound
- Ensure the total power of your speakers does not exceed the crossover's maximum power handling of 400 Watts.
- Check for loose connections or damaged wires.
- Experiment with the treble and bass adjustment switches to see if a different frequency setting improves clarity.
9. User Tips
- Experiment with Settings: The WEAH-242 offers 9 different frequency combinations. Take the time to experiment with both the treble and bass adjustment switches to find the sound profile that best suits your speakers and listening preferences.
- Speaker Matching: While the crossover is versatile, optimal performance is achieved when paired with speakers that complement its frequency division capabilities. Consider the impedance and power handling of your speakers.
10. Warranty and Support
For any issues or questions regarding your WEAH-242 Audio Speaker Passive Crossover, please contact your retailer or the manufacturer's customer support. Keep your purchase receipt for warranty claims. Specific warranty terms may vary by region and retailer.