HELM Audio DB12 AAAMP Mobile Headphone Amplifier $199.99 9.3 Build 9.0/10 Features 9.0/10 Sound 10.0/10 What We Dig Great Build Quality Amazingly Transparent Very powerful amp What To Think About Power switch a little sticky AMAZON A while back, something a little different arrived on my doorstep. It’s called the HELM Audio DB12 AAAMP Mobile Headphone Amplifier … Continue reading HELM Audio DB12 AAAMP Mobile Headphone Amp Review: An Amazing Mini-Powerhouse!