Might want to cover your ears, as Echo the Ampwave has arrived with an updated Reference sheet.

Echo is a man who speaks his mind, often rather bluntly. He has very little restraint and usually will say the first thing that pops into his mind before he even thinks about it. He is, however, rather humble and will apologize when he realizes he has said something upsetting. Very upbeat, often seen as the life of the party, especially when he is that party's DJ. Music is his passion, often finding his head filled with songs he is currently obsessed with. Occasionally the music he is thinking of will leak out of his speakers, especially when he is thinking of how he would remix them. He and Arabella will often sing together, as he absolutely adores Arabella's voice. While he can alter his voice to basically be pitch perfect whenever he wants, he prefers to rely on his 'natural' range.

Echo is 7'. And with this update, the aspects of an Ampwave are shown. His chest plate shows his heartbeat, while his eyes change to match the sound waves of what he speaks.

Echo's usual outfit here

Updated Reference done by  Kaorisorahoshi

Character originally adopted from  Akrushun-Adopts
Ampwave species belongs to SlumberYote