Gearank

There are times when complex tools can distract, if not totally derail your practice or creative processes. This is the reason why many still prefer straightforward gear like the Electro-Harmonix Headphone Amp, a portable unit that lets you play your instrument through headphones - nothing more and nothing less.

It's a compact box with a belt clip that's powered by a 9V battery, with basic input and headphone out jacks, and a simple volume control.

What makes it interesting is how it is designed to handle pedalboards, which can be nifty if you want to practice quietly while still using your performance rig.

Finally, it is built similar to their nano-size pedals, with a metal exterior for reliability and longevity.

Features:

• Tone: Clean
• Controls: Knobs: Volume
• Inputs: 1 x 1/4" (100 kΩ Impedance)
• Headphones: 1 x 1/8"
• Power Source: 1 x 9V Battery

Pros
Simple, reliable and effective are three words that nicely summarize how many feel about the EHX Headphone Amp. Many of its commendations come from users who are happy with its one volume knob operation, while others are impressed with its reliable tank tough build. Some users describe it as having a warm sound that complements the sound of guitars and pedals. Even bassists are impressed with how it can reproduce lows through the headphones.

Cons
The lack of an easy-access battery compartment turned off a few users, although there are others who are happy with having to screw and unscrew the case for improved reliability. And it's no surprise that those who are looking for more tone options will not be content with its simplicity.

Overall
If you're looking for a streamlined approach to playing through headphones then get the Electro-Harmonix Headphone Amp.

Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Guitar Headphone Amps.