The Artec AB-1 is a small and effective preamp for your acoustic guitar with two potentiometers controlling the volume and tone of your instrument.
Using an electric guitar style set up of potentiometers (knobs) to adjust volume and tone, instead of the acoustic norm of slide switches can provide a more familiar set up to players accustomed to playing electric guitars. The installation is also less invasive, not requiring a large rectangular cut out on the side of your guitar like some others can.
The active tone control allows treble and volume boosting, as opposed to a passive design that can only remove treble and volume. This allows it to be louder and brighter than a passive equivalent. Runs on a 9v battery.
You can plug your piezo or magnetic pickup directly into it with the 1/8 inch jack socket, The output jack also plugs directly in. The whole thing can be installed without any soldering.
Wire clip included, 9v battery included (UK only).