LD-1
| Brand | ESS |
| Function | Speaker (Supertweeter) |
| Produced | 2014 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Driver | Heil Air-Motion Transformer (Total Radiating Area: 21.5in²) |
| Brand | ESS |
| Function | Speaker (Supertweeter) |
| Produced | 2014 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Driver | Heil Air-Motion Transformer (Total Radiating Area: 21.5in²) |