Nominal line voltage: 115 V or 230 V (both accepted – no selection needed).
Input voltage range: +/- 15 %.
500 mA delayed fuse.
Rate power consumption: 15 W.
Volume buttons (+/-).
Input selection button.
Linear LED indicator.
In1 RCA S/PDIF.
In2 USB Audio Class 2.0 (no driver required on Mac OS X as of v.10.6.4 nor on Linux, driver required only for Windows).
In3 Toslink optical.Input 2 can receive stereo audio encoded signal up to 384 kHz/Bit depth up to 32 compatible DSD over PCM.
In4 RCA 2-channel.
Wireless outputs 4 channels max.
Hub: 18 W x 59 H x 11.6 D (cm).
External power supply: 14 W x 39 H x 11 D (cm).
3 years, parts and labor.