Introduction
Thank you for choosing the Hifonics Zs65c Zeus Series 6.5-inch 2-Way Component Speaker System. This manual provides essential information for the proper installation, operation, and maintenance of your new car audio speakers. Please read this manual thoroughly before installation to ensure optimal performance and safety.
Safety Information
- Always disconnect the vehicle's battery negative terminal before beginning any electrical installation.
- Ensure all wiring is properly insulated to prevent short circuits.
- Mount speakers securely to avoid vibration and potential damage.
- Do not install speakers in locations that obstruct vehicle operation or safety features.
- Consult a professional installer if you are unsure about any part of the installation process.
- Avoid prolonged exposure to extremely high volume levels, which can cause hearing damage.
Package Contents
Verify that all items are present in your package:
- Two 6.5-inch Mid-bass Woofers
- Two Tweeters
- Two Passive Crossover Networks
- Flush, surface, and angle tweeter mounting hardware
- Grilles for the mid-bass woofers

This image displays the complete Hifonics Zs65c component speaker system. It features two 6.5-inch mid-bass woofers, each with a black cone and Hifonics branding. Alongside them are two compact tweeters, also black, designed for high-frequency sound reproduction. Additionally, two black passive crossover networks are visible, which are essential for directing the correct frequency ranges to the woofers and tweeters.
Setup and Installation
Proper installation is crucial for the performance and longevity of your speaker system. This component system consists of separate woofers, tweeters, and passive crossovers, allowing for flexible placement and optimized sound staging.
1. Mounting the Woofers
- Identify suitable locations in your vehicle for the 6.5-inch woofers. Common locations include door panels or rear deck.
- Ensure the mounting depth of 2-1/8 inches is sufficient.
- Securely fasten the woofers using appropriate hardware.
- Install the provided grilles over the woofers for protection.
2. Mounting the Tweeters
The tweeters come with flush, surface, and angle mounting hardware, offering versatility for optimal sound imaging.
- Flush Mount: Requires cutting a circular hole for the tweeter to sit flush with the mounting surface.
- Surface Mount: Allows the tweeter to be mounted on top of a flat surface.
- Angle Mount: Provides an angled housing to direct the sound towards the listening position.
- Choose the mounting method that best suits your vehicle and desired sound stage.
3. Wiring the System
The passive crossover networks are essential for directing the correct frequency ranges to the woofers and tweeters. Incorrect wiring can damage the speakers or your amplifier.
- Connect the output from your amplifier (or head unit) to the input terminals of the passive crossover network.
- Connect the "Woofer" output from the crossover to the 6.5-inch mid-bass woofer.
- Connect the "Tweeter" output from the crossover to the tweeter.
- Ensure correct polarity (+ to + and - to -) for all connections.
- All connections should be secure and insulated to prevent short circuits.
Operating Instructions
Once installed and wired correctly, your Hifonics Zs65c component speakers are ready for use. These speakers are designed to integrate with your existing car audio system.
- Ensure your car audio head unit or amplifier is powered off before making any connections.
- After installation, power on your audio system and start with the volume at a low level.
- Gradually increase the volume and adjust audio settings (bass, treble, balance, fader) on your head unit or amplifier to achieve your preferred sound.
- These speakers are rated for 60 Watts RMS power handling and 300 Watts Maxx Power. Avoid exceeding these limits to prevent damage.
Maintenance
To ensure the longevity and optimal performance of your Hifonics Zs65c speakers, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to gently wipe dust from the speaker cones and grilles. Avoid using harsh chemicals or abrasive cleaners.
- Moisture: While designed for automotive environments, these speakers are not waterproof. Avoid exposing them to excessive moisture or direct water spray.
- Inspection: Periodically check all wiring connections to ensure they remain secure and free from corrosion.
- Environmental Factors: Protect speakers from extreme temperatures and direct sunlight when possible, as these can degrade materials over time.
Troubleshooting
If you encounter issues with your speaker system, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers |
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| Distorted or unclear sound |
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| One speaker not working |
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If these steps do not resolve the issue, contact Hifonics customer support or a qualified car audio technician.
Specifications
| Feature | Specification |
|---|---|
| Model Name | Zs65c |
| Speaker Type | Component |
| Speaker Size | 6.5 Inches (Woofer Diameter) |
| RMS Power Handling | 60 Watts |
| Maximum Output Power | 400 Watts |
| Speaker Impedance | 4 Ohms |
| Frequency Response (+/- 3dB) | 55Hz-20kHz |
| Sensitivity (1 watt/1 meter) | 88 dB |
| Crossover Point | 6 kHz |
| Crossover Slope | 12dB |
| Mounting Depth/Chassis Depth | 2-1/8 inches (5.4 cm) |
| Product Dimensions (D x W x H) | 2.13"D x 7.01"W x 2.13"H (5.4 cm D x 17.8 cm W x 5.4 cm H) |
| Item Weight | 4.8 pounds (2.18 kg) |
| Connectivity Technology | Coaxial (Note: This refers to the general type of speaker connection, not the speaker itself being coaxial) |
| Audio Output Mode | Stereo |
| Manufacturer | HIFONICS |
| Date First Available | October 9, 2019 |
Warranty and Support
The Hifonics Zs65c Zeus Series Component Speaker System comes with a Limited Warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or visit the official Hifonics website.
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Hifonics customer support. Contact information can typically be found on the manufacturer's website or product packaging.





