The mk2 range from HEDD improve further a fantastic product line, which itself was the result of decades of speaker technology research. It follows on from designer Klaus Heinz work at Adam Audio where he was responsible for many legendary models such as the incredibly popular A7X. All models retain the AMT (Air Motion Transformer) driver that provides sharp and fast treble and combines it with two new technologies for making the speakers more accurate and responsive. Firstly, they have now integrated the lineariser DSP plugin that accompanied the first-generation units inside the speaker itself. This works by slightly delaying certain frequencies so that all of them leave the speaker at exactly the same time, resulting in a perfect, phase coherent impulse response. The listener will sense the that the bass notes will appear much punchier and tighter, especially in the sub octaves, as lower waves take longer to develop than the treble frequencies, alongside an improves spatial response. Surprisingly the integrated version has less latency than the previous plugin, coming in at only 10ms. The new HEDD product line demonstrates what can be achievedtoday both in audio quality and control versatility.