1. Introduction
The VOX AP2BS amPlug 2 Bass Headphone Amplifier is a compact, plug-and-play device designed for bass guitarists to practice silently. It features fully analog circuitry for rich sound, dedicated bass tones, and built-in rhythm patterns. Its portable design and battery power make it suitable for practice anywhere.
2. Safety Information
- Do not expose the unit to rain, moisture, or extreme temperatures.
- Avoid dropping or subjecting the unit to strong impacts.
- Use only specified batteries (AAA). Ensure correct polarity when inserting.
- Remove batteries if the unit will not be used for an extended period.
- Do not attempt to disassemble or modify the unit. Refer servicing to qualified personnel.
- Prolonged listening at high volume levels can cause permanent hearing damage.
3. Package Contents
Verify that all items are present in the package:
- VOX AP2BS amPlug 2 Bass Headphone Amplifier
- AAA Batteries (x2)
- Instruction Manual (this document)
4. Parts and Controls
Image: Top view of the VOX amPlug 2 Bass amplifier showing the controls. From left to right: AUX input, GAIN knob, TONE knob, VOLUME/TEMPO knob, and RHYTHM button.
- 1/4" Instrument Plug: Connects directly to your bass guitar's output jack. Features a 180-degree rotating mechanism for optimal positioning.
- AUX Input (3.5mm stereo mini jack): Connect an external audio player (e.g., smartphone, MP3 player) to jam along with your favorite tracks.
- Headphone Output (3.5mm stereo mini jack): Connect your headphones for private practice.
- GAIN Knob: Adjusts the input gain level, affecting the amount of distortion or overdrive.
- TONE Knob: Controls the tonal characteristics, from bright to warm.
- VOLUME/TEMPO Knob: Adjusts the overall output volume. When the RHYTHM function is active, this knob also controls the rhythm tempo.
- RHYTHM Button: Activates and cycles through the built-in rhythm patterns.
- Power ON/OFF Button: Turns the unit on or off.
- Battery Compartment: Houses two AAA batteries.
Image: The VOX amPlug 2 Bass amplifier demonstrating its 180-degree rotating instrument plug, allowing for flexible positioning when connected to a bass guitar.
5. Setup
- Install Batteries:
- Open the battery compartment cover on the back of the unit.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
- Connect to Instrument:
- Plug the 1/4" instrument plug of the amPlug 2 directly into your bass guitar's output jack.
- Adjust the plug's angle (up to 180 degrees) for comfortable positioning.
- Connect Headphones:
- Plug your headphones into the Headphone Output jack (3.5mm stereo mini jack).
- Power On:
- Press and hold the Power ON/OFF button for a few seconds until the indicator light illuminates.
Image: The VOX amPlug 2 Bass amplifier connected to a bass guitar, ready for use.
6. Operating Instructions
6.1 Basic Playback
- Ensure the unit is powered on and connected to your bass and headphones.
- Adjust the VOLUME knob to a comfortable listening level.
- Use the GAIN knob to control the amount of drive or distortion. Turn clockwise for more gain.
- Adjust the TONE knob to shape your sound, from brighter to warmer.
6.2 Using Rhythm Patterns
The amPlug 2 Bass model includes 9 built-in rhythm patterns to aid your practice.
- Press the RHYTHM button to activate the rhythm function. The indicator light will flash.
- Each subsequent press of the RHYTHM button will cycle through the available patterns.
- Use the VOLUME/TEMPO knob to adjust the tempo of the selected rhythm pattern.
- To turn off the rhythm function, press and hold the RHYTHM button until the indicator light turns off.
6.3 Using the AUX Input
Connect an external audio device to the AUX input to play along with music.
- Connect a 3.5mm stereo mini cable from your audio player's headphone output to the amPlug 2's AUX Input.
- Adjust the volume on your external audio player to balance it with your bass guitar's volume.
Video: A product overview demonstrating the features and usage of the VOX amPlug 2 Bass Headphone Amplifier, including its compact design, controls, and connectivity options.
7. Maintenance
- Cleaning: Wipe the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the unit in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
- Battery Replacement: Replace batteries when the sound becomes weak or distorted, or the indicator light dims.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Unit not powered on; low batteries; headphones not connected; instrument not connected; volume too low. | Press Power ON/OFF button; replace batteries; connect headphones; connect instrument; increase VOLUME knob. |
| Weak or distorted sound | Low batteries; GAIN knob too high/low; TONE knob setting. | Replace batteries; adjust GAIN knob; adjust TONE knob. |
| Rhythm not playing | RHYTHM function not activated; VOLUME/TEMPO knob too low. | Press RHYTHM button; increase VOLUME/TEMPO knob. |
| External audio not heard | AUX cable not connected; external device volume too low. | Connect AUX cable; increase volume on external audio device. |
9. Specifications
- Model: AP2BS
- Power Supply: AAA batteries x 2
- Battery Life: Approximately 17 hours (alkaline batteries)
- Dimensions (W x D x H): 7 x 1 x 5 inches (approximate, based on product dimensions)
- Weight: 3.04 ounces (including batteries)
- Input/Output Jacks: 1/4" Instrument Input, 3.5mm AUX Input, 3.5mm Headphone Output
- Controls: GAIN, TONE, VOLUME/TEMPO, RHYTHM button, Power ON/OFF button
- Rhythm Patterns: 9 built-in patterns
10. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official VOX website. Keep your proof of purchase for warranty claims.
