Specs
http://audiostereo.ro/ATC_ca2_mk2_main.html

Frequency Response (-3dB) :DC - 500 kHz
Distortion (1kHz) : <0.0005% / 106dB, 1V into 600 Ohms
Line Input sensitivity for 1V Output : 150mV
R.I.A.A. Input sensitivity : 0.7/ 1.1/ 1.4/ 2.2/ 3.4/ 5.1/ 6.7/ 10mV (user configurable)
R.I.A.A. Input Impedance: 100 / 47k Ohms (MC/ MM user configurable)
R.I.A.A. Accuracy (20Hz – 20kHz): ±0.5dB
Maximum Output Level : XLR 15.5V r.m.s., RCA 7.5V r.m.s.
Input Impedance : 5k Ohms
Output Impedance : 10 Ohms
S+N/N Ratio : IEC “A” >108dB, DIN >104dB, Wide Band >95dB
Absolute Phase : Phono Zero Degrees, XLR Zero Degrees, Pin 2 Hot