VOX AP3HG

VOX amPlug 3 High Gain Headphone Guitar Amplifier Instruction Manual

Model: AP3HG

Introduction

Thank you for purchasing the VOX amPlug 3 High Gain Headphone Guitar Amplifier. This compact and portable device allows you to enjoy high-quality guitar tones and practice silently using headphones. Designed for electric guitars, it features multiple amplifier modes, built-in effects, and rhythm patterns to enhance your playing experience.

Front view of the VOX amPlug 3 High Gain Headphone Guitar Amplifier.

Image: Front view of the amPlug 3 High Gain unit.

Package Contents

  • VOX amPlug 3 High Gain Headphone Guitar Amplifier
  • 2 x AAA batteries
  • Instruction Manual (this document)

Key Features

  • High-Gain Tones: Delivers searing, overdriven tones suitable for heavy rock and metal genres.
  • Three Dynamic Modes: Includes High Gain for intense distortion, Mid Boost for added punch, and Gain Boost for even more overdrive.
  • Nine Rhythm Patterns: Features selectable rhythm patterns including metal, hard rock, and punk, ideal for practice and jamming.
  • Advanced Analog Circuitry: Captures the aggressive sound and fast response characteristic of high-gain amplifiers.
  • Compact and Portable: Ultra-lightweight design (40 grams excluding batteries) for easy transport.
  • Long Battery Life: Operates on two AAA batteries, providing up to 17 hours of continuous playtime.
  • Auxiliary Input: Allows connection of external audio sources to play along with your favorite tracks.
  • Foldable Plug Mechanism: Rotates 180 degrees for optimal positioning and convenient storage.
  • Auto Power-Off: Conserves battery life by automatically shutting down when not in use.

Controls and Functions

Close-up view of the VOX amPlug 3 High Gain controls: AUX, GAIN, TONE, VOLUME, and FX button.

Image: Top view of the amPlug 3 High Gain showing the control knobs and FX button.

  • 1. GAIN Knob: Adjusts the amount of distortion or overdrive. Turn clockwise for more gain, counter-clockwise for less.
  • 2. TONE Knob: Controls the tonal characteristics, from brighter (clockwise) to warmer (counter-clockwise).
  • 3. VOLUME Knob: Sets the overall output volume to your headphones.
  • 4. FX Button: Cycles through built-in effects (Chorus, Delay, Reverb) and rhythm patterns. Press briefly to change.
  • 5. AUX Input (3.5mm jack): Connect an external audio player (e.g., smartphone, MP3 player) to play along with music.
  • 6. Headphone Output (3.5mm jack): Connect your headphones here.
  • 7. Guitar Input (1/4-inch plug): Plugs directly into your electric guitar's output jack. This plug rotates 180 degrees.
  • 8. Power Button: Press and hold to turn the unit on or off.

Setup Guide

  1. Insert Batteries:

    Open the battery compartment cover on the back of the amPlug unit. Insert two AAA batteries, ensuring correct polarity (+/-). Close the cover securely.

    Back view of the VOX amPlug 3 High Gain with the battery compartment open, showing two AAA batteries inserted.

    Image: Battery compartment with AAA batteries.

  2. Connect to Guitar:

    Plug the 1/4-inch jack of the amPlug 3 directly into your electric guitar's output jack. The plug can rotate 180 degrees to accommodate various guitar body shapes and playing positions.

    VOX amPlug 3 High Gain plugged into an electric guitar's output jack.

    Image: amPlug 3 connected to a guitar.

  3. Connect Headphones:

    Plug your headphones into the 3.5mm headphone output jack on the amPlug 3 unit.

    A hand plugging headphones into the VOX amPlug 3 High Gain.

    Image: Headphones being plugged into the amPlug 3.

Operating Instructions

Power On/Off

Press and hold the Power button (located on the side) for approximately 1 second to turn the amPlug 3 on or off. A small LED indicator will illuminate when the unit is powered on.

Adjusting Tone and Volume

Use the GAIN, TONE, and VOLUME knobs on the top of the unit to adjust your desired sound. Experiment with different settings to find your preferred tone.

A hand adjusting the control knobs on the VOX amPlug 3 High Gain while it is plugged into a guitar.

Image: Adjusting the amPlug 3 controls.

Selecting Effects and Rhythms

Press the FX button (small button on the top right) to cycle through the available effects (Chorus, Delay, Reverb) and rhythm patterns. Each press will advance to the next option. Refer to the detailed product specifications for a full list of available effects and rhythms.

Using the AUX Input

Connect an external audio device to the AUX input jack using a 3.5mm stereo cable. You can then play along with your favorite music or backing tracks through your headphones. The volume of the external audio can be controlled by your external device.

Maintenance

Battery Replacement

When the sound becomes distorted or the LED indicator dims, it is time to replace the batteries. Open the battery compartment on the back of the unit and replace the two AAA batteries with new ones, observing correct polarity. Always use fresh batteries for optimal performance.

Cleaning

Wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as these may damage the finish.

Troubleshooting

ProblemPossible CauseSolution
No sound from headphones.
  • Unit is not powered on.
  • Headphones not properly connected.
  • Volume knob is set too low.
  • Batteries are depleted.
  • Guitar cable not fully inserted.
  • Press and hold the Power button to turn on.
  • Ensure headphones are fully plugged into the output jack.
  • Turn the VOLUME knob clockwise.
  • Replace with fresh AAA batteries.
  • Ensure the amPlug 3 is fully inserted into the guitar's output jack.
Sound is distorted or weak.
  • Batteries are low.
  • GAIN knob is set too high.
  • Replace with fresh AAA batteries.
  • Adjust the GAIN knob to a lower setting.
Unit turns off unexpectedly.
  • Auto power-off activated.
  • Batteries are depleted.
  • This is a normal power-saving feature. Turn the unit back on.
  • Replace with fresh AAA batteries.

Specifications

Model NumberAP3HG
Dimensions (L x W x H)1.42"D x 5.12"W x 7.2"H (approx. 36 x 130 x 183 mm)
Weight2.12 ounces (approx. 60 grams) excluding batteries
Power Supply2 x AAA batteries
Battery LifeUp to 17 hours (approximate, may vary with usage)
Input/Output Jacks1/4" Guitar Input, 3.5mm Headphone Output, 3.5mm AUX Input
EffectsChorus, Delay, Reverb
Rhythm Patterns9 patterns (Metal, Hard Rock, Punk, etc.)
MaterialPlastic

Important Safety Information

  • Do not expose the unit to rain, moisture, or extreme temperatures.
  • Avoid dropping or subjecting the unit to strong impacts.
  • Do not attempt to disassemble or modify the unit.
  • Remove batteries if the unit will not be used for an extended period.
  • Dispose of batteries according to local regulations.
  • Prolonged listening at high volume levels may cause hearing damage.

Warranty and Support

For warranty information and customer support, please refer to the official VOX website or contact your local VOX distributor. Keep your purchase receipt as proof of purchase for warranty claims.

Manufacturer: VOX

Website: www.voxamps.com

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