Astell & Kern A&ultima SP4000 Portable High-Resolution Digital Audio Player headphone 2.5mm for effective shielding against audio

for effective shielding against audio interference between the two circuits

Charge them with light and enjoy the show when the lights go out

Frequency response: 20Hz - 20kHz Maximum volts out: 1

DAC: 32bit

Astell & Kern A&ultima SP4000 Portable High-Resolution Digital Audio Player headphone 2.5mm for effective shielding against audioSP4000 Built on Legacy, Evolving Perfection The A&ultima SP4000 is Astell&Kern's newest flagship digital audio player, the result of three years of relentless research and innovation following the development of the SP3000. As part of the A&ultima series Astell&Kern's flagship lineup combining cutting edge technology and top tier specifications the SP4000 surpasses the boundaries set by the SP3000, once regarded as the ultimate reference. Built upon