DOUBLE X0 Guitar Pickup Preamp User Manual

1. Introduction

Thank you for choosing the DOUBLE X0 Guitar Pickup Preamp. This innovative dual-channel system combines a single coil magnetic pickup with a condenser microphone to deliver clear, high-quality acoustic sound with effective noise reduction. Designed for ease of use and versatility, the X0 features intuitive controls for volume, mic level, pickup tone, mic tone, and phase adjustment, allowing you to fine-tune your sound. With its built-in rechargeable battery, the X0 offers extended playing time, making it an ideal accessory for acoustic guitarists.

2. Safety Information

Read all instructions carefully before use.
Keep the device away from water and excessive moisture.
Do not attempt to disassemble or modify the device. Refer all servicing to qualified personnel.
Use only the provided USB charging cable for recharging the battery.
Avoid exposing the device to extreme temperatures or direct sunlight.

3. Package Contents

Please check the package to ensure all items are present:

1 x DOUBLE X0 Guitar Pickup Preamp
1 x Fixture Leather Pad
1 x Cable with 1/4 inch Jack
1 x Cross Screwdriver
2 x Washer
2 x Wire Clip
1 x USB Charging Cable
1 x User Manual

Contents of the DOUBLE X0 Guitar Pickup package — Figure 1: Package Contents - Includes the pickup, leather pad, cable, screwdriver, washers, wire clips, USB cable, and user manual.

4. Product Overview

4.1 Key Features

Dual-channel system: Single coil magnetic pickup and condenser microphone.
Effective noise reduction for acoustic clarity.
Comprehensive controls: Volume, Mic Volume, Bass, Treble, M.Tone, Phase switch.
USB rechargeable 500mAh lithium battery.
Long working time: Up to 100 hours on a single charge.
Compact and lightweight design.
Suitable for acoustic guitars with soundhole diameters between 80mm and 120mm.

4.2 Controls and Indicators

Labeled controls of the DOUBLE X0 Guitar Pickup — Figure 2: Control Layout of the X0 Pickup. Features include Volume control, Bass and Treble tone controls for the pickup, an Indicator light, USB port, M.Tone (Mic Tone) control, Phase switch, and Mic Volume control.

Vol control: Adjusts the overall output volume.
Bass / Treble: Tone controls for the magnetic pickup.
Indicator: LED light for status (e.g., charging, power on).
USB port: For charging the internal battery.
M.Tone: Tone control for the condenser microphone.
Phase: Phase switch to help eliminate feedback.
Mic volume: Adjusts the volume level of the condenser microphone.

4.3 Dimensions and Weight

Dimensions and weight of the DOUBLE X0 Guitar Pickup — Figure 3: Small & Lightweight Pickup. Dimensions are approximately 11.5cm (4.52in) in length, 3cm (1.18in) in width, and 3cm (1.18in) in height. The unit weighs only 44g (1.55oz).

4.4 Soundhole Compatibility

Diagram showing soundhole diameter compatibility for the DOUBLE X0 Guitar Pickup — Figure 4: Scope of Application. The X0 Pickup is suitable for acoustic guitars with a soundhole diameter ranging from 80mm to 120mm.

4.5 Battery Life

Battery life information for the DOUBLE X0 Guitar Pickup — Figure 5: Long Battery Life. The X0 Pickup features a built-in premium battery that provides up to 100 hours of working time after approximately 2 hours of charging.

5. Installation

The DOUBLE X0 Guitar Pickup is designed for easy installation in acoustic guitars. Ensure your guitar's soundhole diameter is between 80mm and 120mm for proper fit.

Diagram illustrating two ways to install the DOUBLE X0 Guitar Pickup — Figure 6: Two Ways of Installation. The diagram shows options for mounting the pickup and connecting it to an amplifier, either directly via a leather buckle or using an endpin jack.

Prepare the Soundhole: Ensure the guitar's soundhole is clean and free of obstructions. Verify its diameter is within the 80-120mm range.
Mount the Pickup: Carefully position the pickup within the soundhole. Use the provided fixture leather pad and wire clips to secure the pickup firmly to the edge of the soundhole. The cross screwdriver can be used to adjust the mounting screws if necessary.
Connect the Output Cable: Attach the 1/4 inch jack cable to the output port on the pickup.
Connect to Amplifier: Route the output cable out of the soundhole and connect the other end to your external amplifier or audio interface.

DOUBLE X0 Guitar Pickup installed in an acoustic guitar soundhole — Figure 7: The DOUBLE X0 Guitar Pickup installed in an acoustic guitar, ready for use.

6. Operation

6.1 Powering On/Off and Charging

Power On: The pickup typically powers on automatically when connected to an amplifier or when a signal is detected. Refer to the indicator light for status.
Charging: Connect the provided USB charging cable to the USB port on the pickup and a suitable USB power source. The indicator light will show charging status (e.g., red for charging, green for fully charged). A full charge takes approximately 2 hours and provides up to 100 hours of working time.

6.2 Adjusting Sound

Volume Control: Use the 'Vol control' knob to adjust the overall output volume of the pickup.
Mic Volume: Use the 'Mic volume' knob to blend in the sound from the condenser microphone. This allows you to add more natural acoustic resonance to your amplified sound.
Pickup Tone (Bass/Treble): Use the 'Bass' and 'Treble' buttons to adjust the low and high frequencies of the magnetic pickup's sound.
Mic Tone (M.Tone): Use the 'M.Tone' button to adjust the tone characteristics of the condenser microphone.
Phase Switch: If you experience feedback, especially at higher volumes, try toggling the 'Phase' switch. This can help to cancel out problematic frequencies.

7. Maintenance

Cleaning: Wipe the pickup with a soft, dry cloth. Do not use abrasive cleaners or solvents.
Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Recharge the unit regularly, even if not in constant use. If storing for a long period, charge the battery to about 50% and recharge every few months.
Storage: Store the pickup in a cool, dry place away from direct sunlight and extreme temperatures.

8. Troubleshooting

No Sound Output:
- Ensure the pickup is properly installed and securely connected to the amplifier.
- Check if the pickup's battery is charged. Recharge if necessary.
- Verify that the 'Vol control' knob is turned up.
- Check the amplifier's volume and input settings.
Poor Sound Quality / Feedback:
- Adjust the 'Bass', 'Treble', and 'M.Tone' controls to find the optimal sound.
- Try toggling the 'Phase' switch to reduce feedback.
- Ensure the pickup is securely mounted and not vibrating excessively.
- Reduce the 'Mic volume' if the microphone is picking up too much ambient noise or causing feedback.
Pickup Not Charging:
- Ensure the USB charging cable is correctly connected to both the pickup and the power source.
- Try a different USB cable or power adapter.

9. Specifications

Feature	Specification
Brand	DOUBLE
Model	X0
Material	Plastic + Electronic Components
Color Options	Black, Red, Blue, Orange, Steel Blue
Power Supply	3.7V 500mAh Lithium Battery
Product Weight	144g / 5.07oz
Product Size (LWH)	11.5 * 3 * 3 cm / 4.52 * 1.18 * 1.18 in
Soundhole Compatibility	80mm - 120mm diameter
Working Time	Up to 100 hours
Charging Time	Approx. 2 hours

10. User Tips

Experiment with Tone Controls: Don't be afraid to experiment with the 'Bass', 'Treble', and 'M.Tone' controls. Small adjustments can significantly change your amplified sound.
Mic Blend: The 'Mic volume' knob is crucial for blending the natural acoustic sound with the magnetic pickup. Start with a lower mic volume and gradually increase it to find a balanced and natural tone without introducing too much room noise or feedback.
Color Options: The X0 Pickup is available in several colors including Black, Red, Blue, Orange, and Steel Blue. Choose the one that best matches your guitar or personal style.

11. Warranty and Support

For any questions, technical support, or warranty inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.

DOUBLE X0 Pickup