Marcusd has posted a review of the FiiO A1 portable headphone amplifier ($30) at Headfonics. His conclusions:
“The A1 is $30, tiny, well built and packs an ok starter amp inside that will be an upgrade on any amp inside your smartphone in terms of gain control, staging and dynamics in general. It has a reasonably balanced sound signature with a tiny bit of peaking in the lower treble but overall stays neutral with a hint of warmth.”
You can read the full review here.
