Manuals+

LASE JBL-TR125

LASE Compatible Aftermarket Passive 2-Way Crossover Network User Manual

Model: JBL-TR125, TR-105, TR-126 Compatible

1. Introduction

This manual provides comprehensive instructions for the LASE Compatible Aftermarket Passive 2-Way Crossover Network. This component is designed to accurately divide audio frequencies between a woofer and a tweeter in a 2-way speaker system, ensuring optimal sound reproduction. It is compatible with JBL-TR125, TR-105, and TR-126 speaker models.

2. Product Overview

The LASE Passive 2-Way Crossover Network is a robust electronic circuit designed to manage audio signals. It features high-quality inductors (coils), capacitors, and resistors to achieve a precise 2 kHz crossover frequency. The unit is housed on a durable circuit board with clearly marked connection points for easy installation.

Top view of the LASE 2-Way Crossover Network circuit board, showing large copper coils, yellow capacitors, and white resistors.

Figure 2.1: Top view of the crossover network, illustrating the main circuit board components including inductors and capacitors.

Side view of the LASE 2-Way Crossover Network, showing the depth of the components and internal wiring.

Figure 2.2: Side profile of the crossover network, highlighting the compact design and component arrangement.

3. Specifications

  • Crossover Frequency: 2 kHz
  • Dimensions (Length x Width x Depth): 5.5 inches (139.7mm) x 4 inches (101.6mm) x 3.5 inches (88.9mm)
  • Weight: Approximately 2 pounds
  • Compatibility: Designed for JBL-TR125, TR-105, TR-126 speaker systems

4. Setup and Installation

Proper installation is crucial for optimal performance. Ensure all connections are secure and correctly polarized.

Rear view of the crossover network showing the input and output terminals, including a speakON connector and a 1/4 inch jack.

Figure 4.1: Input/Output terminal plate with clearly labeled connections.

  1. Mounting: Securely mount the crossover network within the speaker enclosure. The unit features a mounting plate with pre-drilled holes for easy installation.
    2. Bottom view of the crossover network showing the black mounting plate with four screw holes.

    Figure 4.2: Bottom view showing the mounting plate.

  2. Input Connection: Connect the audio signal from your amplifier to the input terminals of the crossover network. Observe correct polarity (+ to + and - to -).
  3. Woofer Output: Connect the designated 'Woofer' output terminals from the crossover to your speaker's woofer driver.
  4. Tweeter Output: Connect the designated 'Tweeter' output terminals from the crossover to your speaker's tweeter driver.
  5. Verification: Double-check all connections for tightness and correct polarity before applying power to the amplifier.

5. Operation

As a passive component, the crossover network operates automatically once correctly installed. It requires no external power source. Its function is to filter the full-range audio signal from your amplifier, sending low frequencies to the woofer and high frequencies to the tweeter, based on its 2 kHz crossover point.

6. Maintenance

The LASE Passive 2-Way Crossover Network is designed for durability and requires minimal maintenance. Follow these guidelines:

  • Environment: Ensure the crossover is installed in a dry environment, protected from moisture and extreme temperatures.
  • Cleaning: If necessary, gently clean the exterior with a dry, soft cloth. Do not use liquid cleaners or solvents.
  • Inspection: Periodically inspect connections for any signs of corrosion or loosening.

7. Troubleshooting

If you experience issues with your speaker system after installing the crossover, consider the following:

  • No Sound from Woofer/Tweeter:
    • Check all wiring connections for the affected driver. Ensure they are secure and correctly polarized.
    • Verify the driver itself is functioning correctly by testing it independently if possible.
  • Distorted Sound:
    • Ensure the amplifier is not overdriving the speaker system.
    • Check for loose connections or damaged wiring.
    • Confirm that the crossover is correctly matched to your speaker drivers' impedance.
  • Imbalanced Sound:
    • Re-check polarity for all drivers. Incorrect polarity can cause phase issues and sound cancellation.

8. Warranty and Support

For warranty information or technical support regarding your LASE Compatible Aftermarket Passive 2-Way Crossover Network, please refer to the original purchase documentation or contact your retailer. Keep your proof of purchase for any warranty claims.