AIYIMA A20 Hi-Fi Balanced 2.1 Amplifier, 240W Power Supply - Elite Electronics
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About this product
Precision power, crafted for true 2.1 performance.
The AIYIMA A20 is a high-performance 2.1-channel Class-D stereo amplifier from AIYIMA’s “Masterpieces of a Decade” series. With balanced XLR and unbalanced RCA inputs, a powerful TPA3255-based output stage, and flexible controls including adjustable high-pass filter and sub output, it’s designed to deliver clean, powerful sound — ideal for hi-fi systems, desktop rigs or 2.1 speaker setups.
Features:
- Class-D TPA3255 Amplification: Efficient, powerful stereo output suitable for modern speakers.
- Fully Balanced Input Options: Supports both XLR (balanced) and RCA (unbalanced), selectable via a front-panel switch.
- Subwoofer Output & HPF Control: Built-in high-pass filter (60–200 Hz) and dedicated sub output for seamless 2.1 system integration.
- Volume Bypass Mode: Lets the amp function strictly as a power amplifier when using an external preamp or processor.
- High Dynamics & Low Noise: Signal-to-Noise Ratio ? 116 dB, Dynamic Range ? 110 dB, THD + N as low as 0.002%.
- Wide Compatibility: Drives 4–8 ? speakers and works with modern sources like streamers, DACs or computers.
- Solid Build & Anniversary Design: Robust chassis and a polished finish celebrate AIYIMA’s 10-year milestone.

Specification
- Channel Configuration: 2.1-channel
- Power Amplifier Chip: TPA3255
- Amplifier Type: Class-D power amplifier
- Inputs: RCA, XLR
- Outputs: Speaker outputs (L/R), active subwoofer output
- Signal-to-Noise Ratio (SNR): ? 116 dB
- SINAD: 95 dB
- THD+N: 0.002%
- Dynamic Range: 110 dB
- Frequency Response: 20 Hz – 20 kHz (±0.4 dB)
- HPF Adjustable Range: 60 Hz – 200 Hz
- Rated Output Power (48 V / 10 A): 250 W × 2 (@ 4 ?)
- Rated Output Power (48 V / 5 A): 120 W × 2 (@ 4 ?)
- Rated Output Power (32 V / 5 A): 78 W × 2 (@ 4 ?)
- Speaker Impedance: 4–8 ?
- Power Input: DC 24–48 V
- Package Weight: 1.75 kg
- Package Size: 296 × 228 × 77 mm
- What's in the Box:
- AIYIMA A20 balanced stereo power amplifier × 1
- 12V trigger cable × 1
- 240W Power Supply × 1
- User manual × 1
- Warranty card × 1