About the Pro-Ject Head Box II
Give your headphones the power they need to sound their best
Top-notch headphones are a great way to experience reference-quality sound for a fraction of the price of a high-end loudspeaker system. But if you're plugging your 'phones straight into the headphone jack on your stereo or PC, you could be missing out on the subtle differences that separate great recordings from the merely good ones. That's because a lot of manufacturers use low-cost, low-fi circuitry to drive their headphone jacks leaving you with uninvolving, one-dimensional sound. Pro-Ject's Head Box II headphone amp delivers the power you need to bring out the best in your headphones and your tunes. Connect it between your music source and your 'phones to experience richer, deeper bass, clearer highs, and gobs more detail. You'll also hear farther into your favorite recordings for that "you are there" feeling.
Product highlights:
- low-distortion headphone amplifier
- recommended headphone impedance: >30 ohms
- THD: 0.005%
- frequency response: 30Hz to 20kHz at ±0.5dB (10Hz to 120kHz at -1dB)
- signal-to-noise ratio: 94dB (112dB-A weighted)
- gain: 11dB
- connections:
- 1 pair line-level RCA stereo audio inputs
- 1 pair line-level RCA stereo audio outputs
- full-size 1/4" stereo headphone output
- oversized outboard power supply with 5' DC cord included
- weight: 20 ounces
- 4-1/16"W x 1-7/16"H x 6"D
- warranty: 1 year
- MFR # Head Box II-SL
What's in the box:
Pro-Ject Head Box II owner's manual
- Headphone amplifier
- AC power supply (with attached 5' DC cord)
- Instructions For Use
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Features
Overview: The Pro-Ject Head Box II headphone amplifier is a compact audio amplifier designed particularly to drive headphones. The external headphone amplifier allows for higher possible volumes and greater audio clarity than the smaller, inexpensive integrated headphone amplifiers that are used in most of today's home receivers or audio players. The Pro-Ject headphone amplifier connects to a line-level (RCA-type) input & output of your AV receiver or directly to the line-level (RCA-type) output of your audio source.
Note: Available with a black or silver front-panel.
Construction: The Pro-Ject Head Box II headphone amplifier employs a metal case to shields the circuitry from vibration and electromagnetic interference.
RCA Input/Output: The Pro-Ject Head Box II headphone amplifier features gold-plated stereo input and output RCA phono jacks. The headphone amplifier's connects to your AV receiver's Tape monitor or CD-R/DVR inputs & outputs. It can also connect directly to your audio source's (CD player, Tape, Turntable) audio output.
Headphone Output: The Pro-Ject Head Box II headphone amplifier is equipped with a front-panel 1/4" headphone jack to plug in your headphones.
Volume Control: The Pro-Ject Head Box II headphone amplifier features a front-panel rotary volume knob to control the volume level of your connected headphones.
Power Requirements: The Pro-Ject Head Box II headphone amplifier operates off of standard household current using the included oversized outboard power supply.
Specifications
Headphone Jack: 3-pole, 1/4"
Gain: 11dB
Power Output: 330mV / 30-ohms, 60mV / 300-ohms
Input Impedance: 47 kOhms
Signal-to-Noise Ratio: 94 ref. full output (112dB-A weighted), 3W power consumption max.
Frequency Response: 30Hz-20kHz (+/-0.05dB), 10Hz-120kHz (-1dB)
THD: 0.005%
Power Consumption: 16V / 120mA AC
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