Mini Galaxy I

Integrated amp, as Audio Space calls this tube amp, drives either headphones or speakers.
Separate power supply unit.
USB input
Switch in back switches between two inputs.
Input 1: RCA
Input 2: RCA or USB (Burr Brown PCM2702)

Spec:
input impedance: >100K
Output Impedance: 4-16 ohm
Output Power: 12Wx2 / (ultralinear) class AB P-P
damping Factor: >3
Freq response: 20hz-20Khz -2dB
T.H.D.: <1% 20Hz - 20KHz (ref. output)
Total Gain: 28dB
Input Sensitivity: 100mV - 600mV
S/N: >87dB (Hum noise <3mV)
Channel Balance: <1dB 20Hz-20KHz (max. volume)
Channel Separation: >65dB 20Hz - 20KHz
Tube: V1-V4 - EL-84, V5,6 12AX7 (ECC-83)
Power: 220V or 110V depending on model
Dimension: 162mmx155mmx155mm
Weight: 6.5KG including power adaptor