Shanling UA1 II USB DAC Amplifier | Dual CS43131 Hi-Res Audio

Shanling UA1 II Portable USB DAC & Headphone Amplifier — Second Generation

Elevate your listening experience with the Shanling UA1 II, a compact yet powerful portable USB DAC and headphone amplifier engineered for audiophiles who demand studio-grade sound on the go. Equipped with a dual CS43131 DAC chip configuration, this second-generation device delivers breathtaking Hi-Res audio with whisper-quiet noise floors, exceptional channel separation, and support for the highest sampling rates available.

Why Choose the Shanling UA1 II?

• Dual CS43131 DAC Chips: Twin high-performance chips in a balanced configuration unlock the full potential of your music library.
• Hi-Res Certified: Supports up to 32-bit / 768kHz PCM and DSD512 — the pinnacle of digital audio fidelity.
• 0.96-inch LCD Display: A clear, at-a-glance screen shows sample rate, format, and volume level in real time.
• Dual Output Options: 3.5mm single-ended output (94mW @ 32Ω) and a 4.4mm balanced output (240mW @ 32Ω) for maximum compatibility with your headphones and IEMs.
• Ultra-Low Distortion: THD+N of just 0.0004% (balanced) ensures the purest, most transparent audio reproduction.
• Ultra-Wide Frequency Response: 20Hz – 40kHz (+0.5dB) for full-spectrum audio clarity from deep bass to sparkling highs.
• Pocket-Friendly Design: Weighing just 17.5g and measuring 52 × 22 × 13mm, it disappears into your pocket or bag without weighing you down.
• USB Type-A & USB Type-C Inputs: Plug directly into laptops, desktops, Android smartphones, and compatible devices — no drivers needed for most platforms.

Technical Specifications

Who Is This For?

The Shanling UA1 II is the perfect upgrade for music lovers, audiophiles, commuters, and remote workers who are tired of compressed, lifeless audio from built-in device DACs. Whether you're pairing it with high-impedance headphones, sensitive IEMs, or studio monitors via the balanced 4.4mm output, the UA1 II handles every scenario with composed, noise-free authority.

Made in Mainland China.

For more information on digital audio standards and Hi-Res audio technology, visit the NIST Consumer Electronics Standards resource.

Frequently Asked Questions

Q: What makes the Shanling UA1 II different from other portable USB DAC amplifiers?

A: The UA1 II uses a dual CS43131 chip configuration in a balanced design, delivering up to 240mW of output power through the 4.4mm balanced output, a 128dB dynamic range, and a THD+N as low as 0.0004%. Its 0.96-inch LCD display also provides real-time format and volume feedback — features rarely found in portable DAC amps at this size and price point.

Q: What devices is the Shanling UA1 II compatible with?

A: The UA1 II supports USB Type-A and USB Type-C inputs, making it compatible with Windows and Mac laptops, Android smartphones (USB-C OTG), and most modern computing devices. iOS/Lightning devices require an Apple Camera Connection Kit or Lightning-to-USB-C adapter.

Q: Does the Shanling UA1 II support DSD audio playback?

A: Yes — the UA1 II supports DSD512 (22.5792 MHz) playback as well as PCM audio up to 32-bit / 768kHz, covering virtually every Hi-Res audio file format available, including FLAC, WAV, DFF, and DSF.

Q: Can I use the 4.4mm balanced output with standard headphones?

A: The 4.4mm balanced output is designed for headphones or IEMs with a 4.4mm Pentaconn balanced cable. If your headphones use a 3.5mm single-ended connection, simply use the 3.5mm output, which still delivers excellent 94mW @ 32Ω performance. Balanced cables for popular headphones are widely available as aftermarket accessories.

Q: How large and heavy is the UA1 II — will it fit in my pocket?

A: Absolutely. The UA1 II measures just 52 × 22 × 13mm and weighs a mere 17.5g — lighter than most sets of keys. It is designed to sit between your source device and headphones without adding any noticeable bulk.