1. Product Overview
The BOSS Audio Systems B65N High Level to RCA Converter is designed to integrate aftermarket amplifiers with factory car stereo systems that do not have RCA pre-amp outputs. It effectively converts high-level (speaker level) audio signals into low-level (RCA) signals, allowing for a clean and clear audio connection to your amplifier. This device also functions as a ground loop isolator, helping to reduce common audio noise such as alternator whine.
The B65N features input sensitivity adjustment, enabling fine-tuning for optimal audio performance with various head units and amplifiers. Its compact design makes it suitable for installation in tight spaces within your vehicle's audio setup.
Figure 1: The BOSS Audio Systems B65N High Level to RCA Converter, showcasing its compact design and RCA output cables.
2. Safety Information
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Always ensure proper electrical connections and insulation during installation to prevent short circuits or damage to your vehicle's electrical system. Disconnect the vehicle's battery before performing any wiring work.
3. Product Features
- Reduces High Pitched Whine Alternator Noise caused by the car's electrical system.
- High Level to RCA Impedance Converter.
- Featuring Input Sensitivity Adjustment.
- Designed for use with car audio systems.
- Compact and durable metal and plastic construction.
4. Installation Guide
Proper installation is crucial for optimal performance and to prevent damage. It is recommended that installation be performed by a qualified professional. Always disconnect the vehicle's battery before beginning any electrical work.
4.1. Understanding the B65N
The B65N is designed to convert speaker-level outputs from your car's head unit into RCA signals for an amplifier. It is not designed to take voltage greater than what a stereo head unit may produce. Anything other than a stereo head unit will cause the B65N to malfunction.
Figure 2: Wiring diagram for the B65N, showing connections from a head unit to the converter and then to an amplifier.
4.2. Wiring Steps
Refer to the wiring diagram on the B65N unit and your stereo's wire harness for correct connections. Always use best practice when splicing cables together, and make sure to cap or tape down any cables you will not be using.
- Identify Speaker Outputs: Locate the right and left speaker output wires from your stereo head unit's wire harness. These wires are typically color-coded and labeled.
- Connect Left Speaker Output:
- Connect the Green wire from the B65N to the positive (+) Left Speaker Output on your head unit's harness.
- Connect the Green/White wire from the B65N to the negative (-) Left Speaker Output on your head unit's harness.
- Connect Right Speaker Output:
- Connect the Gray wire from the B65N to the positive (+) Right Speaker Output on your head unit's harness.
- Connect the Gray/White wire from the B65N to the negative (-) Right Speaker Output on your head unit's harness.
- Connect RCA Cables: Connect your RCA cables to the RCA outputs on the B65N (Red to Red, White to White).
- Connect to Amplifier: Connect the other end of the RCA cables to the corresponding RCA inputs on your amplifier.
- Connect Harness to Head Unit: Finally, connect the modified wire harness back to your stereo head unit.
4.3. Visual Installation Guide
Video 1: A detailed guide demonstrating the proper and safe use of the B65N High/Low Level to RCA Converter, including wiring and connection steps.
5. Operating Instructions
Once installed, the B65N operates automatically to convert high-level signals to low-level RCA signals. The primary operational adjustment is the input sensitivity.
5.1. Input Sensitivity Adjustment
The B65N features two adjustment potentiometers labeled 'L' (Left) and 'R' (Right) on its top surface. These allow you to fine-tune the output level of the RCA signal to match the input sensitivity of your amplifier. Adjust these levels carefully to achieve clear audio without distortion. Start with the levels at their lowest setting and gradually increase them until the desired volume and clarity are achieved from your amplifier.
6. Maintenance
The B65N is designed for durability and requires minimal maintenance. Keep the unit free from excessive dust and moisture. Ensure all connections remain secure to prevent intermittent audio issues.
- Periodically check wiring connections for tightness and corrosion.
- Keep the unit in a dry environment, away from direct water exposure.
- Clean the exterior with a soft, dry cloth if necessary. Do not use harsh chemicals or solvents.
7. Troubleshooting
If you experience issues with your B65N converter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| High-pitched whine or alternator noise | Ground loop interference, poor grounding of amplifier(s). |
|
| No audio output or low volume | Incorrect wiring, low input sensitivity, faulty RCA cables. |
|
| Distorted audio | Input sensitivity too high, amplifier gain too high. |
|
8. Specifications
- Model: B65N
- Dimensions: 3.38 x 1.5 x 1.5 inches (L x W x H)
- Item Weight: 4 ounces
- Material: Metal, Plastic
- Connectivity Technology: RCA
- Input Type: High Level (Speaker Level)
- Output Type: RCA (Low Level)
- Features: Input Sensitivity Adjustment, Ground Loop Isolation
9. Warranty Information
The BOSS Audio Systems B65N comes with a 1 Year Warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use. Please retain your proof of purchase for warranty claims. For full warranty terms and conditions, please visit the BOSS Audio Systems website or contact customer support.
10. Support and Contact
For technical assistance or customer service, please contact BOSS Audio Systems using the information below:
- US Toll-free Technical Assistance: 800-999-1236
- Customer Service: 805-751-4853
- Website: www.bossaudio.com
You may also refer to the official User Manual (PDF) for additional details.