| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | amplifier | Eastern countries | Commonly used in karaoke establishments and for home entertainment systems. | 1 |
| 2 | amplifier feedback | Eastern countries | Amplifier feedback is less commonly discussed or recognized in traditional Eastern music and sound systems, which may have different design principles to minimize feedback. | 1 |
| 3 | audio amplifier | Eastern countries | High-quality audio amplifiers are often integrated into home audio systems and are appreciated for their design and craftsmanship. | 1 |
| 4 | audio amplifier | Eastern culture | Less commonly used for personal entertainment, but valued for professional sound systems in venues | 1 |