OP-amp: NE5532
Audio Input: 3.5mm Audio jack, Stereo L / R RCA
Frequency range: 20Hz-20 kHz (± 3dB)
THD: =0, 03%
Matching headphone impedance: 32-600 O
NR: = 95db
Operating voltage: DC12V
Input sensitivity: 0.2mV
Dimension: L99 * W98 * H33 mm
Net weight: 0.25 kg