BRIK AUDIO AP 24 USB 24BIT/192 Khz HEADPHONE AMP.Only Silver.
Specifications:
INPUT OPTION : RCA Line Input x 1 USB 2.0 interface Input x 1 (type B)
POWER OUTPUT: 32ohm x 1 total 500mW
SAMPLE RATE SUPPORT 44.1Khz, 48Khz, 88.2Khz, 96Khz, 176.4Khz, 192Khz
OUTPUT LOAD IMPEDANCE :32~300 ohm
DISTORTION :0.05 %2 POINT EQ CONTROL :125 ~ 10K Hz 80 dB W
DIMENSION:140 x H 48 x D160 mm
WEIGHT: 1200 g
http://www.avmentor.gr/reviews/2018/group_test_dac_headphone_amplifiers_2018_1.htm