Direct Stream Digital is a single bit audio format developed by Sony and Philips. It uses density-pulse modulation coding (a kind of sigma-delta modulation) and is used to store records on SACD
Brand: iFi
Powered by USB: yes
The lowest frequency, Hz: 20
Brand: Astell&Kern
Headphone output: 3.5mm jack, 4.4mm jack
Output connectors: 3.5mm jack, 4.4mm jack