| Answer | Crossword Clue |
|---|---|
| BELS | Acoustical units. |
| AUDILE | Acoustical |
| BEATTONE | Acoustical effect. |
| SONES | Acoustical measures |
| SIRENS | Acoustical instruments. |
| SIREN | Acoustical instrument |
| RESONATORS | Acoustical devices |
| SONE | Acoustical unit |
| ECHO | Acoustical bounce |
| ECHO | Acoustical engineer's concern |
| EGGCRATE | Acoustical foam pattern |
| SIRENES | Acoustical instruments: Var. |
| CEIL | Put in acoustical tile, perhaps |
| TESLA | "Five Man Acoustical Jam" band |
| LODI | CCR cover on Tesla's "Five Man Acoustical Jam" |
| KONIG | German physicist noted for acoustical research (1832-1901). |
