1. Introduction
Welcome to the user manual for your MTX Terminator TN500.1 Mono Block Class D Amplifier and MTX Audio 35-Series 3510-04 10-inch Subwoofers. This bundle is designed to deliver powerful and clear bass performance for your vehicle's audio system. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your products.
Please read this manual thoroughly before attempting installation or operation. Keep this manual for future reference.
Package Contents:
- 1x MTX Terminator TN500.1 Mono Block Class D Amplifier
- 2x MTX Audio 35-Series 3510-04 10-inch 4-Ohm Subwoofers
- Remote Bass Control (for amplifier)
- Mounting Hardware (for amplifier)

2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the equipment:
- Professional Installation Recommended: If you are unsure about any aspect of installation, consult a qualified car audio technician.
- Power Disconnection: Always disconnect the vehicle's battery negative terminal before starting any installation.
- Wiring: Ensure all wiring is correctly routed and secured to prevent pinching, cutting, or short circuits. Use appropriate gauge wire for power and ground connections.
- Ventilation: Install the amplifier in a location that allows for adequate airflow to prevent overheating.
- Moisture: Avoid installing components in areas exposed to moisture or excessive dust.
- Volume Levels: Prolonged exposure to high volume levels can cause hearing damage.
3. Product Overview
MTX Terminator TN500.1 Amplifier Features:
- Class D Topology: Efficient design for high power output with minimal heat generation.
- True RMS Power: Delivers consistent and reliable power.
- Adjustable Gain Control: Allows matching the amplifier's input sensitivity to the source unit's output.
- Variable Low Pass Crossover: Fine-tune the frequency range sent to the subwoofers.
- Integrated Bass Boost: Enhances low-frequency output.
- Remote Bass Control: Conveniently adjust bass levels from the driver's seat.
- Circuit Protection: Built-in safeguards against thermal overload, short circuits, and over/under voltage.
- Compact Design: Suitable for installation in various vehicle spaces.


MTX 35-Series 3510-04 Subwoofer Features:
- 10-inch Single Voice Coil: Designed for robust and accurate bass reproduction.
- Inverted Apex Surround: Increases air movement for enhanced sound pressure levels (SPL).
- Spider Plateau Venting: Improves cooling of the voice coil for increased reliability and power handling.
- Optimized for Enclosures: Delivers strong bass without requiring excessively large enclosures.
- Durable Construction: Built to withstand demanding audio environments.


4. Setup and Installation
Proper installation is crucial for the performance and safety of your audio system. If you are not experienced with car audio wiring, it is highly recommended to seek professional installation.
4.1. Amplifier Installation (MTX Terminator TN500.1)
- Mounting Location: Choose a dry, well-ventilated location, such as under a seat or in the trunk. Ensure the amplifier is securely mounted to prevent movement.
- Power Wiring:
- Run a power wire (minimum 8-gauge recommended) directly from the vehicle's positive battery terminal to the amplifier's +12V terminal.
- Install an in-line fuse holder (with appropriate fuse rating, e.g., 50A) within 18 inches of the battery.
- Ground Wiring: Run a ground wire (same gauge as power wire) from the amplifier's GND terminal to a clean, unpainted metal surface on the vehicle's chassis. Ensure a solid electrical connection.
- Remote Turn-On Wire: Connect a remote turn-on wire from your head unit's remote output to the amplifier's REM terminal. This wire turns the amplifier on and off with your head unit.
- Audio Input: Connect RCA cables from your head unit's subwoofer or full-range pre-outs to the amplifier's RCA input jacks.
- Speaker Output: Connect the subwoofer speaker wires to the amplifier's speaker output terminals. Ensure correct polarity (+ to + and - to -).
4.2. Subwoofer Installation (MTX 35-Series 3510-04)
- Enclosure: Install the subwoofers into a suitable sealed or ported enclosure. Refer to the subwoofer's specifications for recommended enclosure volumes.
- Wiring: Connect the subwoofer's terminals to the speaker wires. For two 4-Ohm subwoofers, you can wire them in parallel to present a 2-Ohm load to the amplifier, which is optimal for the TN500.1.
- Secure Mounting: Ensure the subwoofers are securely mounted within the enclosure and the enclosure is secured within the vehicle to prevent movement.
4.3. Wiring Diagram (Conceptual for 2x 4-Ohm Subwoofers to 2-Ohm Load)
To achieve a 2-Ohm load for optimal power from the TN500.1 amplifier, wire the two 4-Ohm subwoofers in parallel:
- Connect the positive (+) terminal of Subwoofer 1 to the positive (+) terminal of Subwoofer 2.
- Connect the negative (-) terminal of Subwoofer 1 to the negative (-) terminal of Subwoofer 2.
- Connect the combined positive (+) terminals to the amplifier's positive (+) speaker output.
- Connect the combined negative (-) terminals to the amplifier's negative (-) speaker output.
5. Operating Instructions
5.1. Amplifier Controls (TN500.1)
- Gain Control: This adjusts the input sensitivity of the amplifier. Start with the gain set to minimum. Play a familiar track at about 75% of your head unit's maximum volume. Slowly increase the amplifier's gain until you hear distortion, then back it off slightly. This ensures the amplifier is receiving a strong, clean signal without clipping.
- Low Pass Crossover (LPF): This filter allows only frequencies below the set point to pass through to the subwoofers. A common starting point is between 80Hz and 120Hz. Adjust to blend smoothly with your main speakers.
- Bass Boost: Use this control sparingly. Excessive bass boost can lead to distortion and potential damage to your subwoofers. Start at minimum and increase only if more low-end emphasis is desired, ensuring the sound remains clean.
5.2. Remote Bass Control
The included remote bass control allows you to adjust the subwoofer output level conveniently from your listening position. Connect it to the designated port on the amplifier. This control typically acts as a master volume for the bass, allowing you to fine-tune the bass intensity without affecting other amplifier settings.
6. Maintenance
Regular maintenance helps ensure the longevity and performance of your MTX audio components.
- Cleaning: Use a soft, dry cloth to clean the amplifier and subwoofers. Avoid using harsh chemicals or abrasive cleaners.
- Ventilation: Periodically check that the amplifier's cooling fins are free from dust and debris to maintain proper airflow.
- Wiring Inspection: Annually inspect all wiring connections for tightness and corrosion. Re-tighten any loose connections.
- Environmental Protection: Ensure components are not exposed to extreme temperatures, direct sunlight, or moisture for extended periods.
7. Troubleshooting
If you experience issues with your MTX audio system, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound from Subwoofers |
|
|
| Distorted Sound |
|
|
| Amplifier Overheating |
|
|
8. Technical Specifications
MTX Terminator TN500.1 Mono Block Class D Amplifier
| Specification | Value |
|---|---|
| RMS Power Output (4Ω) | 300W |
| RMS Power Output (2Ω) | 500W |
| Topology | Class D |
| Signal to Noise Ratio | > 95dB |
| Adjustable Gain | Yes |
| Low Pass Crossover | Variable |
| Bass Boost | Integrated |
| Remote Bass Control | Included |
| Item Weight | 5 pounds |
| Package Dimensions | 7.2 x 5.5 x 2 inches |
MTX Audio 35-Series 3510-04 10-inch Subwoofer
| Specification | Value |
|---|---|
| Recommended Amp Power (RMS) | 125-250W |
| Impedance | 4Ω (Single Voice Coil) |
| Frequency Response | 28Hz - 130Hz |
| Sensitivity | 83.2dB |
| Mounting Depth | 4.625 inches |
9. Warranty and Support
9.1. Warranty Information
The MTX Terminator TN500.1 Amplifier and MTX Audio 35-Series 3510-04 Subwoofers are covered by a 2-Year Manufacturer Warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, abuse, accident, neglect, or unauthorized modification.
9.2. Customer Support
For technical assistance, warranty claims, or further information regarding your MTX products, please contact MTX customer support through their official website or authorized dealers. Have your product model number (MTXBDL241009-03) and proof of purchase ready when contacting support.





