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48V/5A power adapter UK plug
Limited Local Warranty (subjected to AIYIMA T&C)

AIYIMA A20 Balanced Stereo Power Amplifier

Upgrade your Hi-Fi audio system with the AIYIMA A20, a compact Class D power amplifier designed to deliver powerful, detailed sound with versatile connectivity and flexible subwoofer integration. Featuring the Texas Instruments TPA3255 amplifier chip, balanced XLR inputs and an adjustable high-pass filter, the A20 is an excellent choice for music enthusiasts building a high-performance desktop or home stereo system.

Key Features

High-performance TPA3255 Class D amplifier chip
Stereo power amplification with 2.1-channel system support
Balanced XLR and unbalanced RCA inputs
Dedicated active subwoofer output
Adjustable high-pass filter from 60Hz to 200Hz
Volume bypass function
Selectable RCA input gain
Replaceable plug-in LME49720 operational amplifiers
Low distortion and high signal-to-noise ratio
12V trigger input for compatible equipment
Compact metal chassis

Technical Specifications

Model: AIYIMA A20
Amplifier chip: Texas Instruments TPA3255
Channels: 2.0 stereo / 2.1 system support
Inputs: RCA, XLR
Outputs: Passive speaker output, active subwoofer output
Speaker impedance: 4–8 ohms
Frequency response: 20Hz–20kHz (±0.4dB)
THD+N: 0.002%
Signal-to-noise ratio: ≥116dB
Adjustable HPF: 60–200Hz
Power input: 48V/5A power adapter UK plug
Dimensions: Approximately 190 × 142 × 46mm
Net weight: Approximately 1.115kg

What's in the Box

AIYIMA A20 power amplifier
48V/5A power adapter UK plug
12V trigger cable
User manual