Pro-Ject Head Box S

Pro-Ject Head Box S

for 99 Classics

Head Box S headphone amplifier: audiophile & affordable! Class-leading sound quality and practical configuration in one box. Head Box S satisfies with rich colourful presentation, very close to reality. It is a perfect upgrade compared to all headphone connections, that can be found on conventional amplifiers.

Input connections for Head Box S can be done from record-output of your amplifier. Because of an integrated loop-out on Head Box S, you do not loose connectivity to your recording device. High quality amplifier modules are used to guarantee best possible headphone amplification and makes hearing your favourite music a delight!

Head Box S delivers natural dynamics, transparency and pure audiophile enjoyment!


Product Info

  • Audiophile headphone amplifier
  • 6,3mm jack input on front
  • Suitable for headphones with low or high impedance
  • Full metal housing protects against interference
  • RCA stereo input
  • RCA stereo loop-out
  • Significantly better sound than standard headphone outputs from integrated amplifiers
  • DC power supply ( under 1 watt standby power)
  • Best-buy award winner
  • On/Off switch on front
  • Faceplates in silver or black


  • Power output: 330mW/30ohms, 60mW/300ohms
  • Headphone connection: 30ohms
  • Signal to noise 95dB (112dB - A weighted) at full output
  • THD (IMD) 0,003% (0,002%)
  • Gain: 11dB
  • Line-level output: 1 pair RCA/phono sockets
  • Outboard power supply: 18V/500mA DC, suitable for your country's mains supply
  • Power consumption: 18V/100mA DC
  • Dimensions: W x H x D (D with sockets) 103 x 36 x 104 (109)mm
  • Weight: 600g without power supply

User manual

pdf user manual pdf user manual