Headphones amplifiers — Pro-Ject Head Box E
Description, images, technical data and specifications
Pro-Ject Head Box E
Image source — © Pro-Ject
The Pro-Ject Head Box E headphone amplifier offers rich sound with high dynamics and transparency. The declared power is 665 mW when working with headphones with a nominal impedance of 32 ohms and supports headphones with an impedance of 8 to 600 ohms. The frequency range is from 20 Hz to 80 kHz (± 0.2 dB). The gain is 11 dB, and the signal-to-noise ratio is -105 dBV. The output impedance of the amplifier is less than 1 ohm, and the total harmonic distortion and noise (THD + N) is less than 0.005%.
Specifications
Model name
Head Box E
Maximum Power, 32 Ohms (mW RMS per channel)
765
Maximum Power, 50 Ohms (mW RMS per channel)
N/A
Maximum Power, 300 Ohms (mW RMS per channel)
N/A
Maximum Power, 600 Ohms (mW RMS per channel)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
80000
Gain (dBu)
11
THD (% at 1V RMS, 300 ohms)
0.005
Signal to Noise Ratio (dB)
105
IMD (%, CCIR, 300 Ohms)
N/A
Crosstalk (dB, 20Hz-20KHz, 300 Ohms)
65
Output Impedance (Ohms)
N/A
Dimensions (mm)
103 x 37 x 120
Weight (kg)
0.39
Official link
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