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DigitalHeadphone Amplifiers
Estimated price (community-sourced)
$85 - $120
Around — community and catalog average, updates slowly
About the UP4(22)
The Shanling UP4(22) is a compact portable Bluetooth and USB DAC/headphone amplifier updated with dual ESS ES9219C DAC chips. It supports wireless and wired use, offers both 3.5mm single-ended and 2.5mm balanced outputs, includes NFC pairing, and adds microphone support with cVc 8.0 noise reduction for calls. The 2022 version is widely described as an updated replacement for the original UP4, with improved DAC hardware and similar pocketable design.
Specifications
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