AIYIMA DAC-A2 USB DAC Headphone Amplifier Optical Coaxial RCA Output
The AIYIMA DAC-A2 is a compact USB digital-to-analog converter and headphone amplifier that turns digital audio from a PC, tablet, phone, TV, DVD or MP3 player into analog sound for active speakers, an amplifier or headphones. It measures 73.5 × 98 × 33 mm, weighs 220 g net, and drives headphones from 16 to 200 ohms with up to 100 mW output power into a 32 ohm load.
Key features
- Multiple digital inputs – accepts PC-USB, optical and coaxial S/PDIF signals so it fits most home audio systems.
- RCA line output – connects directly to an amplifier or powered speakers on your desktop.
- Built-in headphone amplifier – drives 16–200 ohm headphones through a 3.5 mm output with up to 100 mW into 32 ohms.
- Bass and treble controls – adjust treble and bass by ±6 dB and use the unit as a preamp or volume controller.
- High-resolution decoding – PC-USB supports up to 96 kHz / 24-bit, while optical and coaxial support up to 192 kHz / 24-bit.
- Compact aluminum body – measures 73.5 × 98 × 33 mm and weighs 220 g.
Specifications
| Model | DAC-A2 |
|---|---|
| Brand | AIYIMA |
| Body material | aluminum |
| Dimensions | 73.5 × 98 × 33 mm |
| Net weight | 220 g |
| DAC chip | MS8412 |
| USB chip | CM6542 |
| Headphone chip | 97220 |
| Op amp chip | NE5532 |
| PC-USB input sampling rate | 96 kHz / 24-bit |
| Optical / coaxial input sampling rate | 192 kHz / 24-bit |
| Frequency response | 20 Hz – 20 kHz (±3 dB) |
| Distortion | 0.01% |
| Signal to noise ratio | ≥105 dB |
| Headphone matching impedance | 16–200 Ω |
| Maximum amp output power | 100 mW into 32 Ω |
| RCA output level | 2.3 V |
| Working voltage | DC 5 V |
| Audio input connectors | Coaxial, Optical, PC-USB |
| Audio output connectors | RCA R/L |
| Headphone output | 3.5 mm |
| Controls | Bass, Treble, Volume, Power switch |
| Compatible devices | Phone, Tablet, Laptop, PC, DVD, MP3, TV |
| Operating systems | XP, W10, W11, MAC, Linux |
| Certifications | CE, KC, FCC, RoHS |
| Color | DAC-A2 |
What's in the box
- 1× Digital Audio Decoder USB DAC
- 1× Fiber optic cable
- 1× PC-USB cable
- 1× Type-C charging cable
Ideal for
- Desktop computer audio setups needing a USB DAC and headphone amp
- Connecting a TV, DVD player or MP3 player to active speakers or an amplifier via optical, coaxial or RCA
- Driving 16–200 ohm headphones with adjustable bass and treble
- Use as a preamp or volume controller for PC, Mac or Linux computers
FAQ
Does it work with my phone, tablet or laptop?
Yes. It is compatible with phones, tablets, laptops, PCs, DVD players, MP3 players and TVs.
Does it fit 16 ohm to 200 ohm headphones?
Yes. The headphone matching impedance is 16–200 Ω.
Can I connect it to active speakers?
Yes. The RCA output connects directly to an amplifier or powered speakers.
Does it need batteries?
No. It has no built-in battery and runs on DC 5 V power input.
What cables are included?
The package includes one fiber optic cable, one PC-USB cable and one Type-C charging cable.