HELM Audio™ Unveils Range of High-Performance Headphones and Amp Cable for Mobile to Wired Headphones HELM Audio today unveiled the world’s first in-line cable amplifier powered by THX AAA™ technology along with their groundbreaking HELM Studio Planar over-ear headphones, their latest wireless headphones & the HELM MQA Adapter at CANJAM SOCAL HONG KONG, S.A.R. – JUNE…