After 27 years voicing
Goku in English, Sean Schemmel does not get rattled in a recording booth. So when he tells fans the
Dragon Ball Daima sessions for Super Saiyan 4 actually knocked him out cold, that lands with weight. At a recent Anime Las Vegas panel, Schemmel walked the room through what those Daima recording days looked like, and the answer was rougher than even most longtime Schemmel watchers expected.
What He Actually Said at the Panel
Schemmel laid it out plainly. He has only ever passed out once during a Goku recording session in his entire run on the franchise. That was for Super Saiyan 4 in the original
Dragon Ball GT. Then
Dragon Ball Daima brought Super Saiyan 4 back, and he says it happened again, somewhere between one and three more times in the booth. He framed it as the cost of doing the form properly, not as a complaint, and he kept the tone light. Fans in the room laughed, then realized he was being literal.
Why the Super Saiyan 4 Voice Hits Different
Schemmel got specific about the mechanics. The Super Saiyan 4 voice sits lower than his standard Goku register, which means his vocal cords open wider and he loses more air per second. Combine that with the way he screams (he leans hard on diaphragmatic breathing, throwing huge volumes of air on every blast), and you get a register that empties him faster than he can refill. He has been doing classic Goku for nearly three decades, so his body knows that range. SS4 is a different physical job, and he is not used to doing it all the time.
Daima asked him to commit to it again, and the booth paid the price.