Introduction
Thank you for choosing Skar Audio TX4 4-inch 120W 2-Way Elite Coaxial Car Speakers. These speakers are engineered to deliver high-quality audio performance in your vehicle. Key features include 60W RMS per pair, a 1.25-inch copper voice coil, TPE surround, and a fiberglass cone. This manual provides detailed instructions for proper installation, operation, and care to ensure optimal sound and longevity.
What's in the Box
Upon unpacking, please ensure all items listed below are present and in good condition:
- Skar Audio TX4 4" 2-Way 120 Watt Coaxial Speakers, Pair

Figure 1: Front view of the Skar Audio TX4 4-inch coaxial speaker.
Specifications
| Feature | Specification |
|---|---|
| Material | Fiberglass, Silk Dome |
| Model Name | TX4 |
| Speaker Type | Coaxial, Tweeter |
| Special Feature | 2 way |
| Recommended Uses For Product | Music |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Laptop |
| Subwoofer Diameter | 4 Inches |
| Unit Count | 1.0 Count |
| Surround Sound Channel Configuration | 2.0 |
| Color | black |
| Included Components | Skar Audio TX4 4" 2-Way 120 Watt Coaxial Speakers, Pair |
| Product Dimensions | 5.25"D x 12"W x 3.75"H |
| Item Weight | 3 Pounds |
| Impedance | 4 Ohms |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Number of Items | 1 |
| Control Method | Voice |
| Speaker Size | 4 Inches |
| Power Source | Corded Electric |
| Signal-to-Noise Ratio | 87 dB |
| Woofer Diameter | 4 Inches |
| Water Resistance Level | Not Water Resistant |
| Customer Package Type | Frustration-Free Packaging |
| Audio Driver Type | Dynamic Driver |
| Subwoofer Connectivity Technology | Wired |
| Specific Uses For Product | car audio systems |
| UPC | 615867127960 |
| Style | neutral |
| Global Trade Identification Number | 00615867127960 |
| Manufacturer | Skar Audio |
| Shape | rectangular prism |
| Set Name | Pair |
| Item model number | TX4 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | TX4 |
| Special Features | 2 way |
| Wattage | 120 watts |
| ASIN | B019Y7VJNG |
| Date First Available | January 4, 2016 |
| Brand | Skar Audio |
| Speaker Maximum Output Power | 120 Watts |
| Connectivity Technology | Coaxial |
| Audio Output Mode | Surround |
| Mounting Type | Car Mount,Coaxial |
Setup
Proper installation is crucial for optimal performance. It is recommended to have these speakers installed by a professional car audio technician. If you choose to install them yourself, ensure you have the necessary tools and knowledge of car audio wiring.
Installation Steps:
- Preparation: Disconnect the vehicle's battery to prevent electrical shorts.
- Access Speaker Location: Carefully remove door panels, dashboard grilles, or other components to access the speaker mounting locations.
- Remove Old Speakers: Disconnect wiring and unmount existing speakers.
- Mount New Speakers: Secure the Skar Audio TX4 speakers in the designated locations using appropriate mounting hardware. Ensure a snug fit to prevent vibrations.
- Wiring: Connect the speaker wires to your amplifier or head unit. Pay close attention to polarity (positive to positive, negative to negative) to avoid phase issues. The TX4 speakers have an impedance of 4 Ohms.
- Reassemble: Carefully reattach all removed panels and components.
- Test: Reconnect the vehicle's battery and test the speakers with various audio sources and volume levels.

Figure 2: Angled view of the Skar Audio TX4 speaker, showing its compact design.

Figure 3: Side view of the Skar Audio TX4 speaker, highlighting its construction.
Video 1: An unboxing and sound test of Skar Audio coaxial car speakers, demonstrating the product and its audio capabilities. This video features the TX65 model, which shares similar characteristics with the TX4.
Operating
Once installed, your Skar Audio TX4 speakers are ready for use. For optimal sound quality, ensure your audio source (head unit, amplifier) is properly configured.
Tips for Optimal Performance:
- Amplification: These speakers perform best when powered by an external amplifier that matches their RMS power rating (60W RMS per pair).
- Crossover Settings: Utilize your amplifier's or head unit's crossover settings to filter out frequencies below 45 Hz to prevent damage and improve sound clarity.
- Equalization: Adjust your equalizer settings to fine-tune the sound to your personal preference. Avoid excessive boosting of bass or treble, which can lead to distortion.
- Volume Control: Avoid playing music at excessively high volumes for extended periods, as this can damage the speakers and your hearing.

Figure 4: Skar Audio TX4 speaker shown with its protective grille installed.
Maintenance
Regular maintenance will help preserve the performance and appearance of your speakers.
Care Instructions:
- Cleaning: Use a soft, dry cloth to wipe down the speaker grilles and surrounds. Avoid using harsh chemicals or abrasive cleaners.
- Environmental Factors: Protect speakers from direct sunlight, extreme temperatures, and moisture. While durable, these speakers are not water resistant.
- Connection Checks: Periodically inspect wiring connections to ensure they are secure and free from corrosion.
Troubleshooting
If you encounter issues with your speakers, refer to the following common problems and solutions:
Common Issues:
- No Sound:
- Check all wiring connections from the speakers to the amplifier/head unit.
- Ensure the amplifier/head unit is powered on and functioning correctly.
- Verify the audio source is playing and not muted.
- Distorted Sound:
- Reduce the volume level on your head unit or amplifier.
- Check amplifier gain settings; they may be set too high.
- Inspect speaker wires for damage or loose connections.
- Ensure proper crossover settings are applied to prevent low frequencies from reaching the speakers.
- Low Volume:
- Increase the volume on your head unit or amplifier.
- Check amplifier output and ensure it matches the speaker's power handling.
- Verify speaker impedance (4 Ohms) is compatible with your amplifier.
Warranty
Skar Audio TX4 speakers come with a Limited Warranty. Please refer to the warranty card included in your product packaging for specific terms, conditions, and duration. Keep your proof of purchase for any warranty claims.
Support
For further assistance, technical support, or to explore other Skar Audio products, please visit the official Skar Audio Store:
Video 2: A review and sound demonstration of Skar Audio TX35 coaxial car speakers, offering insights into the sound quality and features of a similar model within the TX series.





