Pro-Ject Head Box E: Compact High-End Headphone Amplifier
The Pro-Ject Head Box E is a compact, high-end headphone amplifier designed to deliver exceptional sound quality for demanding headphones. It addresses the common issue of modern devices like laptops and smartphones lacking the power to fully realize a headphone's potential.
Key Features and Benefits
- Suitable for demanding headphones.
- 6.35mm and 3.5mm headphone outputs.
- Bypass RCA loop-out for daisy-chaining to an additional amplifier.
- Excellent low-distortion performance.
- Uses low-noise components.
- Compact footprint.
- Both outputs can be used simultaneously.
- Solid full-metal casing.
- Available in silver or black front panel options.
Technical Specifications
- Output Power: 665 mW (at 32 Ohms)
- SNR: -105 dBV
- THD+N: < 0.005%
- Gain: 11dB
- Crosstalk: 65dB
- Frequency Response: 20Hz - 80kHz (+-0.2dB)
- Analog Inputs: 1 Pair RCA/Cinch
- Headphone Output: 1x 6.3mm, 1x 3.5mm
- Analog Loop Outputs: 1 Pair RCA/Cinch
- Headphone Impedance: 8 - 600 Ohms
- Output Impedance (Headphone Amplifier): <1 Ohm
- Power Supply: 5V/0.5A DC
- Standby Power Consumption: < 0.5W
- Dimensions (W x H x D): 103 x 37 x 120 mm
- Weight: 390 g (without power supply)
Design and Construction
The Head Box E utilizes a fully discrete headphone amplifier design, eschewing integrated chips for superior performance and longevity. The robust metal casing effectively shields against electromagnetic interference and vibrations, ensuring a clean audio signal. The front panel and controls are crafted from high-quality, machined aluminum.
This amplifier is praised as an audiophile bargain due to its combination of versatility, performance, and high-quality sound, setting a new standard for budget-friendly headphone amplifiers.
Connectivity
The amplifier features an RCA input for connecting a source of your choice. On the front panel, there are two headphone outputs: a 6.35mm jack for Hi-Fi headphones and a 3.5mm jack for modern headphones or in-ear monitors. Both outputs can be used concurrently, allowing for shared listening experiences.
