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5Vrms fixed) Network protocols Roon Bridge
portable form factor tuned for reference accuracy
Ricable Invictus Sub subwoofer cable
SW1X copper-wound Super HiB DC core signal output transformers providing simultaneous balanced XLR and single-ended RCA outputs
Listeners linking a portable player
Astell&Kern SP4000 Phono 5Vrms fixed) Network protocols RoonThe Astell&Kern SP4000 is the A&ultima flagship digital audio player, a three year evolution beyond the SP3000, built around a true Quad DAC implementation using four AK4191EQ digital processors each paired one to one with a single AK4499EX DAC. A 904L stainless steel chassis, full Android OS with Astell&Kern's proprietary ADP bit perfect streaming path, and a 6 inch 2K display make it the most technically ambitious portable music player Astell&Kern
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