Brand:

• JBL

Models:

• PRX ONE
• EON ONE MK2
• EON ONE Compact
• EON208P
• IRX ONE

Overview:

This article identifies the speaker models that support Phantom Power, specifies the input channels equipped with this feature, and provides instructions for enabling 48V Phantom Power.

It serves as a reference for users connecting compatible condenser microphones directly to supported speakers, helping them identify the appropriate input channels and understand how to enable phantom power to ensure proper microphone operation without the need for an external power supply or mixer.

Enabling Phantom Power on JBL Professional Portable PA Systems
 

PRX ONE
 

This unit provides selectable +48V Phantom Power for Channels 1 and 2.
 

1. Connect the condenser microphone to the XLR input on Channel 1 or Channel 2.
2. Press the CH1 or CH2 knob for the desired channel to access its settings.
3. Use the MASTER/MENU knob to navigate to the Phantom Power setting.
4. Press the MASTER/MENU knob to select and enable +48V Phantom Power.
5. Verify that Phantom Power is enabled for the selected channel.
6. Gradually increase the channel level and master output, then test the microphone to confirm proper operation.

EON ONE MK2
 

On this model, Phantom Power is available on Channels 1 and 2.

1. Connect your condenser microphone to a supported XLR microphone input, Channel 1 or Channel 2, 
2. Press the rotary knob for CH1 or CH2 to open that channel's menu.
3. Turn the MASTER/MENU rotary knob to navigate to Phantom Power.
4. Confirm that the setting is enabled.  The +48V supply applies to both CH1 and CH2.
5. Raise the input gain and master volume gradually while testing the microphone.
   
    

EON ONE Compact


 

On this model, Phantom Power is available on Channel 1

1. Connect the condenser microphone to MIC/LINE Input 1 (CH1).
2. Locate the dedicated “PHANTOM” button on the speaker's control panel.
3. Press the Phantom button to enable +48V phantom power.  The LED indicator will illuminate RED when activated.
4. Adjust the CH1 Gain and Master Volume gradually, checking the input signal and listening for distortion.

EON 208P
 

This unit features a dedicated PHANTOM button located between the CH1 and CH2 channel controls.  Phantom power is available on Channels 1 and 2 and is activated for both channels simultaneously.

1. Locate the PHANTOM button between the CH1 and CH2 channel strips.
2. Press the PHANTOM button to enable +48 V Phantom Power.
3. Raise the appropriate channel's GAIN and LEVEL controls gradually.
4. Slowly increase MAIN VOLUME until you reach the desired listening level.
    

IRX ONE
 

This unit features a dedicated “PHANTOM 48V” button for enabling or disabling phantom power for condenser microphones connected to CH1 and CH2.

1. Connect the condenser microphone to the XLR input of CH1 or CH2.
2. Press the “PHANTOM 48V” button to enable phantom power.  The LED indicator will illuminate RED when activated.
3. Gradually raise the microphone channel level and master volume while testing the signal.

Recommendations Before Connecting a Condenser Microphone

Before enabling Phantom Power on a JBL Professional Portable PA system, review the following recommendations:

• Microphone Compatibility: Confirm that the microphone supports standard +48V Phantom Power.  While many condenser microphones require it, some use alternative powering methods.
• Correct Input: Connect the microphone to a compatible XLR microphone input, not an auxiliary or instrument input.
• Balanced XLR Cable: Use a properly wired, balanced XLR cable in good condition to ensure a reliable connection.
• Phantom Power Control: Verify that the speaker model supports Phantom Power and review the appropriate activation procedure, which may involve the speaker’s controls or the JBL Pro Connect app, depending on the model.
• Gain and Output Levels: Keep the channel gain and master output levels low before enabling Phantom Power to minimize unexpected loud sounds.
• Power Supply: Ensure the system has sufficient battery charge or is connected to a stable AC power source, as applicable.