Astell&Kern AK HC2 Hybrid Dual DAC USB Dongle Headphone Amplifier

The Astell&Kern AK HC2 is a high-resolution USB DAC and headphone amplifier that brings studio-grade audio to your mobile devices, laptop, or desktop. Featuring a hybrid design with dual Cirrus Logic CS43198 DAC chips, it delivers exceptional clarity, detail, and a wide soundstage. The AK HC2 supports PCM up to 32-bit/384kHz and native DSD256, ensuring compatibility with the highest quality audio files. Its 4.4mm balanced output provides a clean, powerful signal with 2Vrms output, low output impedance, and an ultra-low noise floor. Crafted from aluminum with a dual-shielded copper cable, the AK HC2 is built to last and designed for audiophiles on the go.

Advantages

Experience true high-resolution audio with dual DAC architecture, balanced output, and support for the most demanding formats. The AK HC2 offers a significant upgrade over standard headphone jacks, with improved dynamics, separation, and a black background. Its compact, bus-powered design means no external battery is needed, making it perfect for travel.

Suitable for

• Audiophiles seeking portable high-resolution audio
• Users of Android, iOS (with adapter), Windows, and macOS devices
• Anyone wanting to upgrade from built-in headphone outputs
• IEM and headphone users with 4.4mm balanced cables

Key specifications

• DAC Chipset: Dual Cirrus Logic CS43198
• Max PCM Sample Rate: 32-bit / 384kHz
• Max DSD Support: DSD256 (Native)
• Output Type: 4.4mm Balanced
• Output Power: 2Vrms (No Load)
• Output Impedance: 1.5 Ohm
• Signal-to-Noise Ratio: 120dB @ 1kHz
• THD+N: 0.0005% @ 1kHz
• Crosstalk: -130dB @ 1kHz
• Frequency Response: 20Hz - 70kHz (±0.038dB)
• Input Interface: USB Type-C
• Body Material: Aluminum
• Cable Type: Dual Shielded Copper
• Power Source: USB Bus Powered
• Operating System Compatibility: Android, iOS (with adapter), Windows, macOS
• LED Indicator: Yes (for status/sample rate)

Recommendations

For best performance, pair the AK HC2 with high-quality IEMs or headphones featuring a 4.4mm balanced cable. Use a USB OTG adapter for iOS devices. The AK HC2 is an excellent choice for critical listening on the go.