Pro-Ject Head Box E Headphone Amplifier

When it comes to delivering high-class sound through the output of modern devices such as laptops or smartphones, they simply dont have enough power to reveal the true potential of todays headphones. Head Box E, stepping in between the source and your headphones, has enough power to unleash the highest quality sound from almost any pair of headphones. Featuring one RCA input for a source of your choice and another RCA output for signal passthrough, the micro-powerhouse keeps things simple. The front panel plays host to two headphone jacks, one 1/4 inch for hifi headphones and one 1/8 inch for modern personal listening products. Both of these outputs can be used simultaneously for shared listening experiences, if desired.

With a powerful discrete headphone amp design, the Head Box Es unusually high output power will deliver top-quality sound and plenty of volume, even for those who wish to listen at loud volumes and use difficult-to-drive headphones. Featuring a rich and full sound with plenty of dynamics and transparency, the fully discrete headphone amplifier does not use cheaper integrated chip designs, instead opting for fully discrete electronics in an expertly laid out circuit board design. The result, not only fantastic power metrics with clean measurements, but also a long product life-cycle, as maintenance, service and repair can be ensured for years and years to come.

Only the best possible components were used to create this one-of-a-kind headphone amplifier. With a fully metal casework to effectively protect it against electromagnetic interference and vibrations (which can cause unpleasant listening experiences), and simple yet sturdy machined aluminium controls offering a reassuring and easy user experience, the Head Box E is true Pro-Ject quality squeezed into an effortlessly integrable chassis size.

Specifications 

• CROSSTALK: 65 dB

• RCA INPUT(S): 1 pair 

• HEADPHONE OUTPUT: 3.5mm Mini Jack + 6.3mm Jack

• HEADPHONE AMP OUTPUT POWER: 665 mW (into 32 ohms) 

• HEADPHONE AMP SIGNAL-TO-NOISE RATIO: -105 dB

• HEADPHONE OUTPUT IMPEDANCE: < 1 Ω

• HEADPHONE AMP THD: <0.005 %

• HEADPHONE AMP FREQUENCY RESPONSE: 20Hz - 80kHz (+-0.2dB) 

• HEADPHONE AMP GAIN: 11 dB

• EXTERNAL POWER SUPPLY RATING: 5V-500mA DC

• MAXIMUM POWER CONSUMPTION: < 0.5 W

• DIMENSIONS (W X H X D): 103 x 37 x 120 mm

• WEIGHT: 0.39 kg

• HEADPHONE IMPEDANCE: 8 - 600 Ω

Manufacturer Site

• Pro-Ject