NET
3 Then he shouted in a loud voice like a lion roaring, and when he shouted, the seven thunders sounded their voices.
Darby
3 and cried with a loud voice as a lion roars. And when he cried, the seven thunders uttered their own voices.
KJV
3 And cried with a loud voice, as [when] a lion roareth: and when he had cried, seven thunders uttered their voices.