His voice was surprisingly low, like he'd sing deep bass.
When they speak aloud, it is sometimes with a high, squeaking sound, other times in a deep bass.
His voice was a deep, powerful bass, and the tone of command brought the man to a sliding stop.
"You use too many big words," it whined in a deep bass.
The idea is to give more accurate tuning and deeper bass.
His voice was a deep bass; a rumble that could be felt in the chest.
The object of these innovations is better rather than deeper bass.
The captain's command was a deep bass through the link.
His voice was a deep bass, but soft, almost purring.
His voice was a deep bass, the richest rumble she'd ever heard.