The Pro-Ject Head Box S2 headphone amplifier is a compact headphone amp. Its enclosure is made of a sandwich of aluminum and steel, providing protection against interference and vibrations.
Pro-Ject Head Box S2: Front Panel
On the front panel, it features two jack outputs (3.5mm and 6.35mm) for connecting any type of Hi-Fi headphones, as well as a large volume knob. The two jack outputs can be used simultaneously, allowing you to connect two pairs of headphones and split the output volume between them.
A small button on the front panel turns the unit on and puts it into standby mode.
Pro-Ject Head Box S2: Rear Panel
The rear panel is equipped with RCA input and output connectors.
The RCA input allows you to connect the line output of your amplifier or any other Hi-Fi source (CD player, streamer, DAC, etc.).
The RCA output is a “loop” output. In fact, this output is a “duplicate” of the input signal, allowing you to connect the Head Box S2 to another line input on youramplifier.
Pro-Ject Head Box S2: Review and Listening Impressions
The Pro-Ject Head Box S2 headphone amplifier boasts a substantial output level of up to 725 mW, allowing it to deliver a rich and dynamic sound while remaining transparent.
A great headphone amplifier at a competitive price to round out your Hi-Fi system!
FAQ: Everything you need to know before buying the Pro-Ject Head Box S2 headphone amplifier
How many headphones can you connect at once?
It has two jack outputs (3.5 mm and 6.35 mm) usable simultaneously. You can therefore connect two headphones at once, the output volume then being split between them.
How does it connect to my system?
The rear RCA input takes the line output of your amplifier or any Hi-Fi source (CD player, streamer, DAC). The loop-type RCA output copies the input signal to feed another line input on your amplifier.
What power level does this small headphone amplifier deliver?
The Head Box S2 delivers an output level of up to 725 mW, which lets it provide a rich, dynamic sound while remaining transparent, enough for the vast majority of Hi-Fi headphones on the market.
Is the casing well protected against interference?
Yes, it is made of an aluminium and steel sandwich that gives it good protection against electromagnetic interference and mechanical vibration.
ValentinInput: 1 x RCA pair
Outputs: 1 x 6.35mm jack; 1 x 3.5mm jack
Loop Output: 1 x RCA pair
Output Power: 725mW (at 32 Ohms)
Frequency Response: 20Hz to 80 kHz (+/-0.2dB)
Gain: 11 dB
Power supply: 5V 500mA DC
Standby power consumption: less than 0.5W
Dimensions: 103 x 37 x 120 mm
Weight: 365g (without power supply)
Customer reviews
Pleinement conforme au descriptif
Dès sa prise en main, la sensation de qualité est immédiate et se confirme à l'écoute. La course du potentiomètre est physiquement agréable sans aucun souffle. A la première écoute avec un casque fermé basse impédance et de type analytique, le son est naturel, sobre, l'ampli respecte les caractéristiques du casque. Prochain test avec un casque ouvert et de 120 Ohms d'impédance. Branché sur les sorties RCA d'un ancien enregistreur en mode PCM audio sur bande Video8, le son me convient parfaitement. De bonne augure pour la suite.