He sings like one of those deep voiced elders at the Kingdom Hall who felt they should take the lead in getting everyone to sing louder. His "We Are The Slave" song he composed was pitiful (on his channel, so wont post here).
He sounded like quite a high tenor in his Christmas song. I'm an alto and I can sing deeper than him. It's reedy too, no timbre to it.
I see in the We Are The Slave song it says "performed by David Evans" - is that a relative of his? His dad's called Jonathan so presumably it's another of the Evans clan?