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Project Audio Head Box S2 Micro High End Headphone Amplifier - PJ65186332


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Audiophile headphone amplifier!

When it comes to delivering high class sound through the output of modern devices such as laptops or smartphones, they all fail on their own. They don’t have enough power to reveal the true potential of today’s headphones. Head Box S2 has enough power to unleash highest sound quality from any headphone. It features one RCA input for a source of your choice. Front-sided are two headphone jacks, one 1/4 inch for hifi headphones and one 1/8 inch for modern head- and earphones. For shared listening experiences both outputs can be used simultaneously. Its 725mW output power will deliver top quality sound and enough volume, even for those who wish to listen at loud volumes! Head Box S2 features a rich and full sound with plenty of dynamics and transparency.

Only the best possible components were used to create this one-of-a-kind headphone amplifier. The enclosure is fully made of aluminium for highest aesthetics and to protect it effectively against electromagnetic interference and vibrations, which can cause unpleasant listening experiences.

Compatible upgrade power supply:  Accu Box S2, Accu Box S2 USB


  • Suitable for demanding headphones
  • 6.35mm and 3.5mm headphone output
  • Bypass RCA loop output for additional amplifier
  • Superior low distortion
  • Low noise components for ultimate sound performance
  • Small footprint
  • Both outputs usable simultaneously
  • Aluminium/metal sandwich casing protects against vibrations and electromagnetic interference
  • Available in silver or black
Weight365g without power supply
Dimensions W x H x D103 x 37 x 120 mm
Standby Power Consumtion< 0,1 W
Power supply5V/0.5A DC
Analgoue loop out1 pair RCA/Cinch
Output impedance (Headphone amp)<1Ohm
Headphone output1 x 6.3 mm jack, 1 x 3.5 mm jack
Analogue inputs1 pair RCA/Cinch
Frequency response20 Hz - 80 kHz (+-0,02 dB)
Signal to noise ratio-110 dBV
THD +N0,002%
Gain11 dB
Crosstalk68 dB
Output power725mW (into 32ohms)

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