Introduction
The LOXJIE P20 is a high-performance full balance tube amplifier designed to enhance your headphone audio experience. Featuring military-grade 6N3 electronic tubes and a carefully tuned circuit, it delivers powerful and clear sound. This manual provides essential information for setting up, operating, and maintaining your P20 amplifier to ensure optimal performance and longevity.
Product Overview
Front Panel
The front panel of the LOXJIE P20 features controls and outputs for easy access and operation.
Image: Front view of the LOXJIE P20 amplifier, showing the balanced XLR headphone output, 6.35mm headphone output, digital display, and multi-function volume knob.
- Balanced XLR Headphone Output: For connecting headphones with a balanced XLR cable.
- 6.35mm Headphone Output: For connecting headphones with a standard 6.35mm (1/4 inch) jack.
- Digital Display: Shows current volume level, input source, and output selection.
- Multi-function Volume Knob: Controls volume, powers the unit on/off, and navigates menus for input/output selection.
Rear Panel
The rear panel provides all necessary input connections and the power input.
Image: Rear view of the LOXJIE P20 amplifier, showing the 12V DC power input, balanced XLR inputs (IN 1 L/R), and unbalanced RCA inputs (IN 2 L/R).
- IN 12V: DC power input for connecting the included power adapter.
- IN 1 L/R (Balanced XLR Inputs): For connecting balanced audio sources using XLR cables.
- IN 2 L/R (Unbalanced RCA Inputs): For connecting unbalanced audio sources using RCA cables.
Diagram with Labeled Components
For a clearer understanding of each component, refer to the diagram below.
Image: A detailed diagram of the LOXJIE P20, labeling the front panel components (1: Volume Knob, 2: Display, 3: 6.35mm Headphone Output, 4: Balanced XLR Headphone Output) and rear panel components (5: Balanced XLR Inputs, 6: Unbalanced RCA Inputs, 7: 12V DC Power Input).
Setup Instructions
- Connect Audio Source:
- For balanced audio sources, connect XLR cables from your source to the IN 1 L/R (Balanced XLR Inputs) on the rear panel.
- For unbalanced audio sources, connect RCA cables from your source to the IN 2 L/R (Unbalanced RCA Inputs) on the rear panel.
- Connect Headphones:
- For balanced headphones, connect your balanced XLR headphone cable to the Balanced XLR Headphone Output on the front panel.
- For standard headphones, connect your 6.35mm headphone jack to the 6.35mm Headphone Output on the front panel.
- Connect Power: Plug the included 12V DC power adapter into the IN 12V port on the rear panel, then plug the adapter into a wall outlet. The unit will power on automatically.
- Tube Warm-up: Allow the amplifier to warm up for approximately 30 minutes for optimal sound performance. The tubes will glow during operation.
Operating Instructions
The LOXJIE P20 features a multi-function volume knob for intuitive control.
- Power On/Off: Press and hold the volume knob for approximately 3 seconds to power the unit on or off.
- Adjust Volume: Rotate the volume knob clockwise to increase volume and counter-clockwise to decrease volume. The current volume level will be shown on the digital display.
- Switch Input Source: Short-press the volume knob to cycle through the menu options. When "IN1" or "IN2" is displayed, rotate the knob to select between Balanced XLR Input (IN1) and Unbalanced RCA Input (IN2).
- Switch Output Port: Short-press the volume knob to cycle through the menu options. When "OUT1" or "OUT2" is displayed, rotate the knob to select between Balanced XLR Headphone Output (OUT1) and 6.35mm Headphone Output (OUT2).
Video: Demonstration of the LOXJIE P20's basic operations, including powering on/off, adjusting volume, and switching between input sources and output ports using the multi-function knob.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Avoid using liquid cleaners or solvents.
- Ventilation: Ensure the amplifier is placed in a well-ventilated area. Do not block the ventilation slots on the top of the unit, as proper airflow is crucial for heat dissipation and component longevity.
- Tube Replacement: The LOXJIE P20 uses 6N3 electronic tubes. If you experience a degradation in sound quality or tube failure, replacement tubes can be purchased. Ensure the amplifier is powered off and unplugged before attempting to replace tubes. Handle tubes carefully as they are fragile.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output |
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| Humming or buzzing noise |
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| Unit does not power on |
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Specifications
| Feature | Detail |
|---|---|
| Model Number | P20 |
| Brand | LOXJIE |
| Color | Black |
| Material | Aluminum |
| Item Weight | 1.32 pounds (0.6 kg) |
| Package Dimensions | 10 x 7.5 x 4.2 inches (25.4 x 19.05 x 10.67 cm) |
| Power Source | Not Battery Powered (12V DC input) |
| Tubes | 6N3 Electronic Tubes |
| Volume Control | Hi-End volume control NJW1195 |
| Headphone Output Power | Up to 600mW at 64Ω |
Warranty and Support
For warranty information, technical support, or any product-related inquiries, please contact LOXJIE customer service through their official channels or the retailer from whom you purchased the product. Please retain your proof of purchase for warranty claims.
For additional information and support, you may visit the LOXJIE Store on Amazon.
