EHA5 Headphone Amplifier specifications:
Input SE:
THD+N @1kHz (A-wt): THD+ N @20kBW (No-wt): SNR @MAX OUT 1kHz (A-wt): 140dB
Dynamic Range @1kHz (A-wt): 140dB
Frequency Response:20Hz-40kHz (±2.5dB)
Noise (A-wt):
Channel Crosstalk @1kHz: -89dB
Input sensitivity:
10Vrms@G=L
2Vrms@G=H
Gain:
36.8dB @G=L
50.8dB @G=H
Channel Balance: 0.5 dB
Output Level: 700Vrms
Bias Voltage: DC580V

Input BAL:
THD+N @1kHz (A-wt): THD+ N @20kBW (No-wt): SNR @MAX OUT 1kHz (A-wt): 146dB
Dynamic Range @1kHz (A-wt): 146dB
Frequency Response: 20Hz- 40kHz (±2.5dB)
Noise (A-wt):
Channel Crosstalk @1kHz: -89dB
Input sensitivity:
20Vrms@G=L
3.9Vrms@G=H
Gain:
30.9dB @G=L
44.9dB @G=H
Channel Balance: 0.5 dB
Output Level: 700Vrms
Bias Voltage: DC580V