By Andrew Liszewski
There’s a lot to like about a non-electronic iPhone amplifier. Not only do you not have to plug it in and run unsightly power cords, or worry about it draining your iPhone’s battery, but as long as the iPhone’s speaker is always located on the bottom, you won’t have to worry about compatibility issues with future versions. On top of all that, if it’s made from wood like the koostik is, it makes for a classy addition to your office or living room. The downside? You’re only looking at about a 2X to 4X boost in sound levels, and it’s not exactly ideal if your music library is heavy on the bass. And if you don’t appreciate handmade craftsmanship, you’re probably also going to balk at the $85 to $90 price tag, depending on what type of woods you opt for.