JOYO AC-20S 20W Acoustic Guitar Amplifier with Bluetooth & Rechargeable Battery

JOYO AC-20S 20W Acoustic Guitar Amplifier with Bluetooth & Rechargeable Battery

The JOYO AC-20S is a 20-watt portable acoustic guitar amplifier designed specifically for acoustic instruments and vocal performance. Featuring a tailored acoustic amplification curve, it enhances clarity across the frequency range — delivering bright, articulate highs alongside warm, full mid and low frequencies.

A built-in high-performance DSP chip provides three digital effects — Chorus, Delay and Reverb — which can be used simultaneously to add depth and space to your sound. The dedicated microphone input is optimised for vocals and includes independent reverb, ensuring clear and balanced vocal projection.

With Bluetooth connectivity, AUX input and USB-C OTG live-streaming capability, the AC-20S connects easily to smartphones, computers and backing tracks. A rechargeable lithium battery provides up to 6 hours of playing time, making it ideal for outdoor performance, busking and portable setups.

Specifications

General
Brand: JOYO
Model: AC-20S
Amplifier Type: Solid State
Output Power: 20W RMS (10W + 10W)
Compatible Devices: Acoustic Guitar, Microphone, Headphones, Smartphone, Computer
Colour: Black/Yellow
Enclosure Material: Metal and Plastic

Speakers
Speaker Configuration: 2 × 4-inch
Impedance: 4Ω
Power Handling: 15W per speaker

Power
Power Supply: AC Adapter
Input Voltage: AC 100–240V, 50–60Hz
Output Voltage: DC 15V / 4A
Battery: 11.1V, 2.2Ah rechargeable lithium battery
Battery Life: Up to approximately 6 hours (usage dependent)

Inputs & Connectivity
Guitar Input Sensitivity: −16 dBV / 1MΩ
Microphone Input Sensitivity: −33 dBV / 5.6kΩ
Bluetooth: Yes
AUX IN: Yes
USB-C OTG Live Streaming Port: Yes
3.5mm Port: Yes
Microphone Channel: Independent Reverb

Dimensions & Weight
Dimensions (mm): 316 × 235 × 190
Weight: 5.4kg

Package Contents
AC Adapter ×1
Power Cable ×1
USB Type-C Cable (2m) ×1
USB-C to Lightning Adapter ×1
Owner’s Manual ×1
(TRRS cable not included)