Clue | Source | Date |
---|---|---|
Certain boosters | ||
Speaker boosters | Wall Street Journal | 22 May 2023 |
Radio components | Family Time | 26 Aug 2019 |
Some sound system components | ||
Power is inclined to suppress what's right in morale boosters | ||
Some mic boosters | ||
They may be used to make mics louder | ||
Stereo components | ||
Stereo components | ||
Stereo components | ||
Radio components | ||
Recording studio pieces | ||
Sound system components |