The Questyle CMA400i is a high-performance DAC and headphone amplifier designed to deliver exceptional clarity, speed and transparency. Built around Questyle’s patented current-mode amplification technology, it offers extremely low distortion and outstanding resolution, making it a strong choice for serious headphone listening and high-quality desktop audio systems.
With a robust aluminium chassis and a carefully engineered analogue and digital signal path, the CMA400i provides both balanced and single-ended outputs to accommodate a wide range of headphones and system configurations. Its precise, detailed presentation makes it particularly well suited to revealing recordings and high-resolution audio sources.
Key Features
- High-performance DAC and headphone amplifier
- Proprietary current-mode amplification technology
- Extremely low distortion and high-resolution sound
- Balanced and single-ended headphone outputs
- Multiple digital inputs including USB and optical
- Solid aluminium chassis construction
Sale Type
Ex-Demo
This item has been used for demonstration purposes in our showroom and has been fully checked prior to sale.
Condition
Good
This unit is in good condition with light cosmetic marks consistent with careful demo use. Fully tested and performing as intended.






