Testing Ikea’s $15 Vappeby portable speaker taught me not to judge an audio product by its ridiculously low price.

Rockville DX15 15" Active/Powered Class “D” 2,000 Watts ... via XLR for linking additional speaker systems or for adding a subwoofer, Clip/limit LED indicator makes it easy to set your levels ...

My ears perked up when hearing about the brand’s latest $15 entry. I’ve tested many speakers in this price range, with results ranging from adequate to awful. All I could ask myself before ...