The Simpl A1 Headphone Amp for iPod was reviewed by O'Gradys Power Page on Nov. 9, 2005. O'Grady's Says:"Simpl Acoustics has put out one of the best headphone amps for the iPod. Audiophiles demanding more power out of your iPod: this is the one."

O'Grady's goes on to say: "I recommend that you try it with high-end headphones, it will make you a believer."

For O'Grady's full review click below: