Headphones lacking punch? Why not try an amp with onboard bass boost — or something more?
We've talked a fair amount in this space lately about how much of a difference a headphone amplifier can make in your portable listening. Whether it's correcting for out-of-whack output impedance or simply providing more juice for difficult-to-drive cans (here's looking at you, on-the-go planar magnetic fans), you can get a better experience for surprisingly little money, with a wide range of pocketable amplifiers on the market right now, ready to interface with your iDevices, Androids, and other portable media devices. Here we look at two interesting and affordable newish devices: the latest miniature amp from FiiO, the E02i, or "Rocky," and the latest incarnation of DigiZoid's unique ZO2.