On February 1st 2005 Jon J. Eilenberg reviewed the Simpl A1 for Wired Magazine's Gadget Lab. He Claims "A headphone amp like Simpl's A1 sits between an audio source and a pair of cans, adding a layer of clean power so the signal can cruise at high volume with clarity and finesse."

John goes on to say: "[The Simpl A1]hugs my 'Pod securely with its rubber-bumpered brackets, and delivers what it should: increased volume, refined sonic details, and punchy bass."