JBL CBT 70JE-1 Extension

This module is designed to physically and acoustically extend a JBL CBT 70J-1 line array column. It adds four low-frequency drivers to increase bass output and improve vertical pattern control, allowing the system to reach lower frequencies down to 45 Hz.

No, this is an extension unit, not a full-range speaker. It is engineered specifically to integrate with the CBT 70J-1 column and includes a built-in crossover network designed to work exclusively with that primary array.

The unit includes a dedicated coupler plate that ensures a secure, seamless mechanical connection. This creates a single, unified column array that maintains the aesthetic and structural integrity of the installation.

Yes, it is built for demanding environments. With a 500W continuous power handling capacity and a durable, fiberglass-reinforced ABS cabinet, it is designed to withstand the rigors of professional audio setups.

Yes, adding the 70JE-1 will alter the total impedance load of your system. You should verify your amplifier's specifications to ensure it can handle the combined load of the primary array and the extension module.

By adding the 70JE-1, you extend the system's low-frequency response down to 45 Hz. This provides a fuller, more robust sound profile, particularly in the lower registers, compared to using the CBT 70J-1 alone.