A20 vs Topping PA5 II
The PA5 II's power @ 8ω is 100W against the A20's 150W, its signal-to-noise 124 dB against 116 dB, its power @ 4ω 100W against 250W, and its thd 0.000% against 0.002%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$135 - $206
Around — community and catalog average, updates slowly
About the A20
The AIYIMA A20 is a stereo Class D power amplifier built around a Texas Instruments TPA3255 chip. It supports RCA and balanced XLR stereo inputs, speaker outputs, and an RCA subwoofer output. Its high-pass filter supports 2.1-channel use, and it includes a bypass mode. Output power depends on the power supply used; the manufacturer lists up to 250 W per channel into 4 ohms with a 48 V/10 A supply.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 150W @ 8Ω
- Power @ 4Ω
- 250W @ 4Ω
- Amplifier Class
- D
Analog Output
Analog signal output specifications
- THD
- 0.002%
- SNR
- 116 dB
Connectivity
Input and output connections
- Analog Inputs
- RCA, XLR
- Analog Outputs
- speaker terminals, RCA subwoofer output
Key Specifications
Power: 150W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions