Graham Slee Voyager Portable Headphone Amplifier

Voyager Battery/Mains/USB Powered Portable Headphone Amplifier, by Graham Slee.

What makes the Voyager so popular amongst hi-fi headphone amplifiers is its wonderful big headphone-amp sound, and that it can take the knocks. Unlike blingy-looking scratch-magnet headphone amps, the Voyager's rugged construction helps it keep its appearance much longer.

Another simple but great benefit is the ease of battery replacement - its 9V battery power source is available in lots of shops. Not that you'll be replacing it all that often, as it lasts for up to 50 hours continuous playing time.

The Voyager is supplied with battery fitted, and is also supplied with a mains power supply for non-mobile use. Plus, it can also pick up power from a 5V USB source, too.

The number one must-have was a proper high quality rotary volume control with a proper control knob, and not an awkward to use side-wheel or those awkward up and down buttons which are either dead-slow or always over-shoot.

Besides the replaceable 9V battery, users wanted as many alternative power options as possible, so the Voyager also has a DC socket for use with the supplied outboard power supply, enabling you to listen at home whilst saving on the battery.

Plus, Graham Slee put in a voltage converter and gave it a mini-B USB socket so users can run power from any 5V USB source - computer, charger, in-seat power etc (USB cable not included).

Being purely analogue, it's easy to use with any device having a line output, and the great thing about it is you can use it with a headphone-out on your iPod, phone, laptop, tablet etc and get better results.

Because the Voyager's line-input is such a light load, your device's headphone output will perform better and be more like a line output, and with the music coming from the Voyager instead, you will notice a valuable improvement.

Features

• Hard-wearing, rugged portable headphone amplifier.
• Runs on any of THREE possible power sources (9V battery, USB, Mains)
• Pure analogue design.
• Rotary volume control.
• Two tone-selection curves.
• Conpact form-factor and lightweight.

Specifications

• Battery Life: 50 hours continuous play, 2-3 weeks average usage.
• Output: 12 mW rms into 32 Ohms, 10 mW rms into 600 Ohms
• Frequency Response: Flat 13 Hz - 34.5 kHz (-1 dB), 5.5 Hz - 69 kHz (-3 dB)
• Contour: +9 dB @ 45 Hz and 20 kHz
• Turnover: +3 dB @ 260 Hz and 2.85 kHz
• Channel Balance: 0.5 dB
• Hum / Noise: -94 dB CCIR Q-pk, 20 Hz - 20 kHz, better than -100 dB A-weighted.
• Stereo Crosstalk: -52 dB
• Distortion (THD + N): 80 Hz 0.03 %, 1 kHz 0.03 %, 5.6 kHz 0.05 %, 16 kHz 0.13 %
• Power Sources:
• Battery, 9V e-cell, MN1604, 6LR61
• USB, via mini-B 5V DC (with internal 9V DC analogue voltage conversion)
• Mains adapter, 12-18 V AC or DC unregulated (internal rectifier for AC use) (Polarity protection on all)
• Weight: 180 grams.
• Dimensions (LxWxH): 125 x 67 x 28 mm

Included

• 1 x Voyager Portable Headphone Amplifier.
• 1 x Mains Power Supply.

More Information

• Voyager, by Graham Slee