When it comes to delivering high-class sound through the output of modern devices such as laptops & smartphones, Head Box S2 is here to help. Many products in its class don’t have enough power to reveal the maximum potential of modern headphones. Head Box S2’s 725mW output power will deliver crisp, clean & musical sonics with sufficient volume for even those who like to crank it. The source of your choosing can be fed to the gold-plated RCA jacks at the rear. On the front are two headphone jacks (1/4″ & 1/8″) that can be used simultaneously for shared listening experiences.

Sound-first componentry is used throughout so you can rest assured you’re getting the best performance for you dollar. The aluminum/steel enclosure helps to protect the circuitry from electromagnetic interference and vibration, further reducing unwanted noise. Its versatility, power, and sonic performance make Head Box S2 is an absolute audiophile bargain that’s within reach for any listener with a critical ear.

Additional information
Weight 0.365 kg
Dimensions 12 × 10.3 × 3.7 cm



  • 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
  • Handmade in Europe


  • Output power: 725mW (into 32ohms)
  • Signal to noise ratio: -110dBV
  • THD +N: < 0.002%
  • Gain: 11dB
  • Crosstalk: 68dB
  • Frequency response: 20Hz – 80kHz (+- 0,2dB)
  • Analogue inputs: 1 pair RCA
  • Headphone output: 1x 6.3mm jack, 1x 3.5mm jack
  • Headphone impedance: 8 – 600Ohm
  • Output impedance: <1Ohm
  • Analgoue loop out: 1 pair RCA
  • Power supply: 5V/0.5A DC
  • Standby power consumtion: <0,5W