Hello everyone, this is the AIYIMA Product Development Team!
We are thrilled to introduce the A20 MONO, a high-power mono amplifier designed to elevate your audio experience. As a new derivative of the 20 Series, it builds on the strengths of the A70 MONO with comprehensive enhancements. This new model features premium audio components and a vintage-style VU meter, allowing real-time monitoring of music playback while adding a touch of classic elegance to its design.


We are confident that the A20 MONO will impress with its sound performance. Stay tuned for a powerful, precise, and musical listening experience!
We are thrilled to introduce the A20 MONO, a high-power mono amplifier designed to elevate your audio experience. As a new derivative of the 20 Series, it builds on the strengths of the A70 MONO with comprehensive enhancements. This new model features premium audio components and a vintage-style VU meter, allowing real-time monitoring of music playback while adding a touch of classic elegance to its design.
Powerful Performance · Immersive Experience
The A20 MONO delivers strong, clean, and dynamic sound. Its chassis retains the cubic design of the A70, ensuring excellent heat dissipation and convenient placement. Whether paired with the T20 tube preamp or integrated into a high-fidelity audio system, the A20 MONO provides an immersive listening experience.Key Features
- Enhanced User Experience: Vintage-style VU meter displays music playback status while adding aesthetic appeal
- Powerful Mono Output: 600W × 1 (2Ω, 10% THD), delivering full and dynamic sound
- Premium Components: TI TPA3255 + OPA1612 chipset, WIMA & Rubycon high-fidelity capacitors (63V 3300μF)
- Versatile Connectivity: XLR/RCA inputs, speaker terminals, and subwoofer output
- Comprehensive Functions: PFFB / VU meter / 12V trigger / Gain control / HPF (80Hz)
- Frequency Response: 20Hz – 20kHz


We are confident that the A20 MONO will impress with its sound performance. Stay tuned for a powerful, precise, and musical listening experience!
Share Your Thoughts
We would love to hear your feedback and expectations:- What are your expectations for the A20 MONO design and features?
- What are your thoughts on the VU meter?