Astell & Kern ACRO CA1000T Headphone Amplifier - Discontinued used The filter used in Crystal

The filter used in Crystal for AirPods Pro has same filter with the genuine Apple AirPods Pro

plug detection and DSP control

25" (H) x 4

Flame resistant IEC socket/connecter/chassis (Fireproof polymers UL94-V0)

the low frequency maintains a sense of depth and volume

Astell & Kern ACRO CA1000T Headphone Amplifier - Discontinued used The filter used in CrystalAll In One Head Fi Audio System, ACRO CA1000T ACRO CA1000T is an all in one Head Fi audio system created for those who want to enjoy the best sound wherever they are. ACRO CA1000T is a multifunctional device that can play ultra high quality sound sources and provide diverse input output options for the perfect desktop companion. Complete with a powerful headphone amplifier and Astell&Kerns proprietary TERATON ALPHA technology making it a versatile