dead room—a room or studio made absolutely soundproof:
- With the advent of radio broadcasting and sound pictures very “dead” rooms have been built.
death chamber—
1. (also: lethal chamber) a room specially equipped for executing people:
- It was with similar displeasure that I undertook a tour of Maryland’s death chamber.
2. (U.S. sl.) an unsafe vehicle (also: death trap):
- The Ford Pinto was considered a death chamber due to its gas tank tendency to explode on impact.