JOYCRAFT DIY Series 

OA-JC3 R2R USB DAC
A compact yet high-precision DAC with vacuum tube integration

The OA-JC3 is equipped with a ladder-type DAC, which, due to its simple construction, demands high precision. After five years of development, this device has succeeded in maintaining resistor deviation within 0.1% using a highly compact module. The OA-JC3, designed for high-end audio applications, delivers exceptional sound quality, significantly surpassing the performance of most commercial audio DACs. The inclusion of a 12AU7 vacuum tube further elevates the sound's detail and richness, providing a warm and dynamic audio experience.

In addition, the OA-JC3 supports a variety of advanced audio formats, including MQA and PCM up to 32-bit/768kHz, and DSD515 (PCM conversion). Its advanced circuit design ensures clean signal transmission, allowing for accurate timing signals across a wide frequency range.

Specifications

• Type: R2R USB DAC
• Supported frequency range: 20Hz-20kHz (+/-2dB)
• S/N Ratio: 83dB
• Total Harmonic Distortion + Noise: 0.15% @1kHz
• Stereo Crosstalk: 73dB (@1kHz)
• Max Output: 2V (rms)
• Digital input: USB Type-C
• Analog output: RCA
• Dimensions (mm): 125 x 100 x 70

※This product requires self-assembly by the customer. (Assembly services are not available.)
※The unit requires a separately sold (DC 20V) AC adapter to operate. (PD-compatible AC adapter and USB-C cable are not included.)
※We generally do not accept returns or exchanges except for initial defects (within one month of purchase). (Examples: no current flow, no sound, etc.)
※Damage or malfunctions caused by the replacement or modification of vacuum tube parts are not covered.