Introduction
The Behringer P2 Ultra-Compact Personal In-Ear Monitor Amplifier is designed for musicians who require personal monitoring in various performance and studio environments. This device provides convenient control over your in-ear monitor mix directly at your fingertips, offering a powerful, lightweight, and user-friendly solution.
Product Features
- Ultra-Compact Design: Lightweight and portable, ideal for musicians on stage or in the studio.
- Personal Control: Allows musicians to control their monitor volume directly.
- Versatile Headphone Output: Features a standard 3.5 mm (1/8") stereo output jack for headphones, earbuds, or custom in-ear monitors.
- Secure Input Connector: XLR / TRS combo input connector with a locking mechanism to prevent accidental disconnections.
- Mono/Stereo Switch: Internal switch to select between mono for mixer aux sends or stereo for headphone outputs.
- High-Quality Volume Control: Detented level control with an on/off switch for precise volume adjustment and long-term durability.
- Integrated Belt Clip: Convenient built-in belt clip for easy attachment to clothing or instrument straps.
Setup
1. Battery Installation
The P2 amplifier operates on a 9V battery (not included). To install or replace the battery:
- Locate the battery compartment release button on the side of the unit.
- Press the button and slide the outer casing downwards to reveal the battery compartment.
- Insert a fresh 9V battery, ensuring correct polarity.
- Slide the outer casing back into place until it clicks securely.

Image: The Behringer P2 with its outer casing removed, showing the internal battery compartment and the mono/stereo switch.
2. Connecting to an Audio Source
The P2 features a locking XLR / TRS combo input. This allows for connection to various audio sources such as a mixer's auxiliary send or a headphone output.
- Connect your audio source (e.g., mixer output) to the XLR / TRS combo input at the bottom of the P2. The locking mechanism ensures a secure connection. To release, press the small tab next to the connector.
- For stereo sources, use an XLR-to-TRS or TRS-to-TRS (male to male) cable.

Image: Close-up of the locking XLR / TRS combo input on the Behringer P2.
3. Connecting Headphones/IEMs
Connect your headphones, earbuds, or in-ear monitors to the 3.5 mm (1/8") stereo output jack located at the top of the P2 unit.

Image: Top view of the Behringer P2, highlighting the 3.5 mm headphone output jack.
Operating Instructions
1. Power On/Off and Volume Control
The P2 features a combined power on/off switch and volume control knob.
- To power on the unit, rotate the top-mounted volume knob clockwise until you hear a click. The battery indicator LED will illuminate.
- Continue rotating clockwise to increase the volume.
- To power off, rotate the knob counter-clockwise until it clicks off.

Image: The top of the Behringer P2, showing the volume control knob and battery indicator light.
2. Mono/Stereo Mode Selection
An internal switch allows you to select between mono and stereo operation, depending on your audio source.
- To access the switch, slide open the outer casing as described in the "Battery Installation" section.
- Locate the small switch labeled "STEREO / MONO" inside the unit.
- Set the switch to "MONO" if using a single mono source (e.g., a mixer's aux send).
- Set the switch to "STEREO" if using a stereo source (e.g., a headphone output from a device).
- Close the outer casing securely after making your selection.
3. Using the Belt Clip
The integrated belt clip allows for convenient placement of the P2 during use.
- Attach the P2 to your waistband, belt, or instrument strap for easy access to volume control.

Image: Side view of the Behringer P2, illustrating the integrated belt clip.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid using abrasive cleaners or solvents.
- Battery Care: Remove the 9V battery if the unit will not be used for an extended period to prevent leakage.
- Storage: Store the P2 in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
- No Sound:
- Ensure the unit is powered on and the volume knob is turned up.
- Check the battery indicator; replace the 9V battery if it's dim or off.
- Verify all audio cables are securely connected to both the P2 and the audio source.
- Confirm the audio source is active and sending a signal.
- Check the Mono/Stereo switch setting matches your audio source.
- Distorted Sound:
- Reduce the volume on the P2 and/or the audio source.
- Ensure the audio source signal is not too strong for the P2 input.
- Check the audio cables for damage.
- Intermittent Sound:
- Check all cable connections for looseness.
- Replace the battery.
- Inspect cables for damage or wear.
Specifications
| Feature | Detail |
|---|---|
| Brand | Behringer |
| Model Name | P2 |
| Color | Black |
| Material | Acrylonitrile Butadiene Styrene (ABS) or similar lightweight plastic |
| Power Source | 1 x 9V battery (not included) |
| Compatible Devices | Devices with standard 3.5mm headphone output or equivalent |
| Control Type | Button Control (Volume Knob) |
| Item Dimensions L x W | 5.3"L x 1.5"W |
| Item Weight | 4.96 ounces |
| Included Components | P2 In Ear Monitor Amplifier |
Official Product Video
Video: A product overview of the Behringer P2 Ultra-Compact Personal In-Ear Monitor Amplifier, demonstrating its features and use.
Warranty and Support
For warranty information, please refer to the official Behringer website: http://www.music-group.com/warranty.aspx
Manufacturer Contact Information: Behringer