The Aiyima H4 Portable Hi-Res USB DAC and Balanced Headphone Amplifier is a premium portable USB DAC and balanced headphone amplifier designed to deliver high-resolution audio tracking anywhere. Equipped with a high-performance ESS ES9039Q2M DAC chip and dual RT6863 operational amplifiers, it effortlessly drives both standard and low-impedance headphones with pristine signal integrity. Its integrated OLED display, multi-platform USB Audio Class switching, and dual output configurations make it an essential upgrade for mobile audiophiles, desktop setups, and gaming consoles.
Key Features
- Flagship ESS ES9039Q2M DAC Decoding: Utilises an advanced high-end ESS conversion chip to support ultra-high resolution audio streams up to 32-bit/768kHz PCM and native DSD512 with ultra-low distortion
- Dual RT6863 Independent Amp Architecture: Integrates two dedicated operational amplifier chips to minimise analog stage noise, ensuring a pure, natural sound floor even on sensitive monitors
- Dual 3.5mm SE & 4.4mm Balanced Outputs: Features a 3.5mm single-ended output along with a dedicated 4.4mm balanced jack delivering up to 240mW of power to scale seamlessly into heavy planar headphones
- Integrated OLED Display & Hardware Controls: Provides immediate visual status on sound configurations, volume steps, and audio stream formats via an elegant screen and physical button layout
- Multi-Platform UAC Class Switching: Offers selectable USB Audio Class (UAC 1.0/2.0) modes to ensure plug-and-play driverless compatibility with Windows, macOS, Android, iOS, and gaming consoles like PS5 and Switch
- 8 Digital PCM Filter Signatures: Features 8 built-in digital filter options allowing listeners to instantly fine-tune, switch, and customise the sound signature directly on the device hardware