Most planar magnetic headphones under-perform when used with a typical Digital Audio Player, DAC or a component stereo. They only “open up” when paired up with a real power amplifier. This is due to the nature of their drivers, which require watts of electrical power to move the diaphragm. Until now, such power was only available in select desktop devices.

Ampersand is a pure analogue amp that changes everything. Not only does it provide the needed audio power, but also, it does so on the go! It’s built-in rechargeable battery will make sure your beloved headphones will keep singing as you move around the house, or travel around the world.

Don’t have travel plans? Ampersand is happy sitting on your desk or bedside table, powered through its USB-C power jack. Our innovative battery charging circuitry measures the battery voltage once every second and turns on charging only when necessary. This allows you to keep Ampersand plugged-in indefinitely, without harming its high-quality, long-life Lithium-Polymer battery.

Ampersand features balanced and single-ended connections on input and output. Enjoy total flexibility to use any equipment in your arsenal — DACs, DAPs and any other sources. With modern connection options, such as 3.5 mm, 4.4 mm PENTACONN and 4-pin XLR you’d be hard pressed to find audio equipment that’s not compatible with Ampersand. Use a balanced source with unbalanced headphones, or the other way around — your choice.

Whether you like to listen to music around the house or on-the-go, you no longer need to compromise when using your favorite headphones. No matter where life takes you, now you can enjoy consistent sound quality in any location. In addition to its portability, this compact, yet versatile power amplifier is destined to become your to-go audio piece.