JOYO AC-40 Acoustic Instrument Combo User Manual

: June 5, 2024
: JOYO

Table of Contents

JOYO AC-40 Acoustic Instrument Combo
INTRODUCTION
Main Features
IMPORTANT NOTES
FRONT PANEL
BATTERY MAINTENANCE
PARAMETERS
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JOYO AC-40 Acoustic Instrument Combo

JOYO AC-40 Acoustic Instrument Combo product

INTRODUCTION

Thanks for purchasing ourAC-40. In order to use this product more safely and get the full use of its features, please read this User Manual carefully and keep it for future reference. The AC-40 acoustic amplifier is developed on the basis of the popular AC-20. While retaining the high sound quality, it is more powerful, more portable and therefore a great choice for outdoor performances. Its 40w (RMS) power can easily meet the requirements for small livee shows, and can be used as long as 3 hours continuously when fully charged. Based on the AC20’S DSP Circuit, It delivers the same sonic clarity and will satisty your amplifier demands without a doubt.

Main Features

An amplification characteristic and EQ curve specifically designed
40 W of power (20W+20W).
Built-in high-performance DSP chip to provide 3 DSP effects (CHORUS,DELAY, REVERB).
3 DSP effects can be used simultaneously.
A dynamic microphone channel gives you a clear and powerful vocal sound.
Mic channel features a reverb.
AUX IN to connect CD player, MP3 or devices alike.
Built-in rechargeable battery to support outdoor performances.
As long as 3 hours of usage when fully charged.
acoustic guitars.

IMPORTANT NOTES

Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this device near water.
clean only with a dry cloth.
Do not install near any heat sources such as radiators, heat registers, stoves, or other devices (including amplifiers) that produce heat.
Do not defeat the satety purpose of the polarized or grounding-type plug.
A polarized plug9 has two blades one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety.
When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs, convenience eceptacles, and the point where they exit from the device.
Please unplug this device after use for energy conservation.
Use the included AC power adapter only. Other adapters may not be compatible with the AC-40’s input voltage and might cause damage or accidents.
The included adapter has passed the electromagnetic compatibility and safety test. We don’t guarantee the safety performance when used with third party adapters.
Never use with a cart, stand, tripod, bracket, or table except as specified by the manufacturer, or sold with the device. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-Over.
Unplug this device during lightning storms or when it’s not in use for a long period of time.
Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the device, the device has been exposed to rain or moisture, does not operate normally, or has been dropped.

FRONT PANEL

Guitar Input
BASS
MIDDLE
TREBLE
VOLUME
CHORUS: Adjust the depth of chorus effect
DELAY: Adjust the delay time
REVERB: Adjust the ratio of wet signal
MIC INPUT
MIC/vOLUME: Volume control for microphone channel
REVERB: Reverb control for microphone channel
Power Indicator
Mains Power
Power switch
DC Mains Input: Connect the included adapter (15V/DCI4A Center Positive)
AUX/INPUT: Stereo headphone input (3.5) to connect a CD player, MP3 or devices alike.

BATTERY MAINTENANCE

When the power LED becomes blue, it indicates that the battery needs to be charged. Please turn off the amp, connect the cable with adapter and plug into
DC15/4A port. The indicator lights Yellow in charging and turns off automatically when it is fully charged. Note: Please do not disconnect the power when it is
charging. otherwise it will damage the battery.

if your amplifier is unoccupied for a long period of time, the battery should be charged every two months to avoid battery aging.
Don’t put this device upside down. Otherwise, the liquid is apt to leak and damage the battery.
When the indicator becomes BLUE, please charge it timely to preserve battery life.
1f the amp can only work for less than 1 hour after fully charged (with normal use and maintenance), it’s time to replace the battery.