1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Magnadyne LS-SUB-200 8-inch Powered Subwoofer. Please read this manual thoroughly before attempting to install or operate the unit to ensure optimal performance and safety. Keep this manual for future reference.
2. Safety Information
Observe the following safety precautions during installation and operation:
- Electrical Safety: Always disconnect the vehicle's battery negative terminal before beginning any electrical work. Ensure all wiring is correctly connected to prevent short circuits or damage.
- Power Source: This unit is designed for 12V DC automotive electrical systems. Do not attempt to connect it to other power sources.
- Ventilation: Ensure the subwoofer is installed in a location that allows for adequate ventilation to prevent overheating.
- Mounting: Securely mount the subwoofer to prevent it from shifting during vehicle movement, which could cause injury or damage.
- Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
3. Package Contents
Verify that all items are present upon unpacking:
- Magnadyne LS-SUB-200 8-inch Powered Subwoofer (Carbon Fiber Speaker Enclosure)
- Instruction Manual (this document)
4. Product Overview
The Magnadyne LS-SUB-200 is an 8-inch powered subwoofer designed to deliver deep, impactful bass in vehicles. It features a compact, ported enclosure and integrated amplification for easy installation and powerful performance.
Key Features:
- Power Output: 320 Watts Maximum Power, 80 Watts RMS @ 4 ohms (14.4VDC)
- Woofer: High-quality 8-inch woofer with IMPP cone
- Enclosure: Solid wood ported enclosure for enhanced bass response
- Connectivity: RCA line input with variable input level adjustment
- Dimensions: 19 inches (L) x 6.5 inches (W) x 9.5 inches (H)
Control Panel Layout:
The control panel is located on the rear of the subwoofer, providing access to all necessary adjustments and connections.
Image 4.1: Close-up view of the control panel on the Magnadyne LS-SUB-200 subwoofer, showing input level, bass frequency, speaker phase controls, RCA inputs, power/protect LED, fuse, and power terminals.
- 1. Input Level (Min/Max): Adjusts the input sensitivity to match the output level of your head unit.
- 2. Bass Freq (50Hz-250Hz): Controls the low-pass filter frequency. Frequencies above this setting will be attenuated.
- 3. Spk Phase (Norm/180°): Selects the phase of the subwoofer output. Use 180° if the bass sounds weak or out of phase with other speakers.
- 4. Line Input (R/L RCA): Connects to the RCA pre-out jacks of your head unit.
- 5. Power / Protect LED: Illuminates green when powered on, red if the amplifier is in protection mode.
- 6. 20A Fuse: Protects the amplifier from electrical overloads. Replace only with a fuse of the same rating.
- 7. +12V Terminal: Connects to the vehicle's positive battery terminal.
- 8. REM Terminal: Connects to the remote turn-on lead from your head unit.
- 9. GND Terminal: Connects to a solid chassis ground point on the vehicle.
5. Installation
Proper installation is crucial for the performance and longevity of your subwoofer. If you are unsure about any steps, consult a professional installer.
5.1 Placement
Choose a location that provides adequate space for the subwoofer and allows for proper ventilation. Common locations include the trunk of a car, under a seat (if space permits), or in the cargo area of an SUV or RV.
Image 5.1: Magnadyne LS-SUB-200 subwoofer installed in the trunk of a vehicle.
Image 5.2: Magnadyne LS-SUB-200 subwoofer positioned in a vehicle's cargo area.
5.2 Wiring Connections
Ensure all connections are secure and insulated to prevent short circuits.
- Power (+12V): Connect the +12V terminal of the subwoofer to the positive terminal of the vehicle's battery. Use a minimum of 10 AWG wire for this connection. Install an in-line fuse (not included, typically 20A) within 18 inches of the battery.
- Ground (GND): Connect the GND terminal to a clean, unpainted metal surface on the vehicle's chassis. Ensure a good electrical connection. Use a minimum of 10 AWG wire, keeping the length as short as possible.
- Remote Turn-On (REM): Connect the REM terminal to the remote turn-on output of your head unit. This wire signals the subwoofer to turn on and off with your vehicle's audio system.
- Audio Input (RCA Line Input): Connect the RCA line inputs (R and L) from the subwoofer to the RCA pre-out jacks of your head unit. If your head unit does not have RCA pre-outs, a line output converter (not included) may be required.
Note: Battery and ground wires must be 10AWG for proper performance.
6. Operation
Once installed, you can adjust the subwoofer's settings to optimize its performance with your vehicle's audio system.
6.1 Initial Power-Up
After all connections are made, reconnect the vehicle's battery. Turn on your head unit. The Power LED on the subwoofer's control panel should illuminate green, indicating it is receiving power and operating correctly.
6.2 Adjusting Controls
- Input Level: Start with the Input Level control set to minimum. Play a familiar piece of music with strong bass. Slowly increase the Input Level until the bass sounds balanced with the rest of your audio system, without distortion.
- Bass Freq (Low Pass Filter): Adjust the Bass Freq control to blend the subwoofer's output seamlessly with your main speakers. A common starting point is around 80-100Hz. If your main speakers are small, you might set it higher; if they are large, you might set it lower.
- Speaker Phase: Listen to the bass response from your normal listening position. Toggle the Spk Phase switch between 'Norm' and '180°'. Choose the setting that provides the strongest and most impactful bass. This corrects any phase cancellation issues between the subwoofer and your main speakers.
7. Maintenance
The Magnadyne LS-SUB-200 subwoofer requires minimal maintenance.
- Cleaning: Use a soft, dry cloth to wipe down the enclosure. Do not use harsh chemicals or abrasive cleaners.
- Connections: Periodically check all wiring connections to ensure they remain secure and free from corrosion.
- Fuse Replacement: If the subwoofer stops working and the Protect LED is off, check the 20A fuse. If blown, replace it only with a fuse of the exact same rating (20A). Using a higher-rated fuse can cause serious damage.
8. Troubleshooting
If you experience issues with your subwoofer, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power (Power LED off) | Blown fuse; Loose power/ground/remote wire; No power from battery/remote source. | Check and replace fuse; Verify all power, ground, and remote connections; Test battery voltage and remote output. |
| Subwoofer in Protection Mode (Protect LED red) | Overheating; Short circuit in speaker wiring; Low voltage. | Ensure adequate ventilation; Check speaker wires for shorts; Verify stable 12V power supply. Allow unit to cool. |
| No Sound Output | No audio signal; Input level too low; RCA cables disconnected/damaged. | Verify head unit output; Increase Input Level; Check RCA cable connections and integrity. |
| Distorted Sound | Input level too high; Bass Freq set incorrectly; Poor ground connection. | Reduce Input Level; Adjust Bass Freq for better blend; Verify secure ground connection. |
| Weak Bass | Incorrect phase setting; Input level too low; Subwoofer placement. | Toggle Speaker Phase (Norm/180°); Increase Input Level; Experiment with subwoofer placement. |
9. Specifications
Technical specifications for the Magnadyne LS-SUB-200 Powered Subwoofer:
Image 9.1: Diagram illustrating the dimensions of the Magnadyne LS-SUB-200 powered subwoofer (19" L x 6.5" W x 9.5" H).
| Feature | Specification |
|---|---|
| Model Name | LS-SUB-200 |
| Speaker Type | Subwoofer |
| Subwoofer Diameter | 8 Inches (210 mm) |
| Maximum Output Power | 320 Watts |
| RMS Power | 80 Watts @ 4 ohms (14.4VDC) |
| Frequency Response | 10Hz-120Hz |
| Low Pass Frequency | 50Hz-120Hz |
| Sensitivity | 86dB 1W @ 1 Meter |
| Signal-to-Noise Ratio (S/N) | 95dBA 1W @ 1 Meter |
| Amplifier Class | AB |
| Fuse Rating | 20A |
| Power Source | Corded Electric (12V DC) |
| Connectivity Technology | RCA (Wired) |
| Product Dimensions (L x W x H) | 19" x 6.5" x 9.5" |
| Item Weight | 12.92 pounds (5.87 Kilograms) |
| UPC | 783855994020 |
10. Warranty and Support
Magnadyne products are designed for reliability and performance. This product is covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official Magnadyne website.
For technical support or service inquiries, please contact Magnadyne customer service through their official channels. Keep your purchase receipt as proof of purchase for warranty claims.
