Headphones amplifiers — EarMen ST-Amp
Description, images, technical data and specifications
EarMen ST-Amp
Image source — © EarMen
The USB DAC in the Earmen ST-Amp is implemented on the ES9280 chip from ESS Technology and is capable of processing digital streams in PCM format with parameters up to 32 bits / 384 kHz and DSD up to DSD128. For connecting headphones, there are 6.35 mm jack and 4.4 mm balanced jack connectors on the front panel. The device also has a balanced 4.4 mm input on the back panel.
Specifications
Model name
ST-Amp
Maximum Power, 32 Ohms (mW RMS per channel)
500
Maximum Power, 50 Ohms (mW RMS per channel)
N/A
Maximum Power, 300 Ohms (mW RMS per channel)
1850
Maximum Power, 600 Ohms (mW RMS per channel)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Gain (dBu)
N/A
THD (% at 1V RMS, 300 ohms)
0.003
Signal to Noise Ratio (dB)
>121
IMD (%, CCIR, 300 Ohms)
N/A
Crosstalk (dB, 20Hz-20KHz, 300 Ohms)
N/A
Output Impedance (Ohms)
N/A
Dimensions (mm)
170 x 30 x 150
Weight (kg)
1100
Official link
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