| Name | Notes | Retail | Average |
|---|---|---|---|
| Quadrature Z |
| Name | Notes | Retail | Average |
|---|---|---|---|
| EA-2100 | 100w x 2, 40 lbs | ||
| EA-2101 | 100w, 6JN6, 40 lbs | ||
| EA-230 | 30w x 2 | ||
| MicroZOTL | 4 lbs | ||
| Siegfried | 6w, 300b SET | ||
| ZH-230 | |||
| ZH-270 | 70w |
| Name | Notes | Retail | Average |
|---|---|---|---|
| TF-10 | hybrid | ||
| TF-10 AH | |||
| TF-10H | with mc, 15 lbs | ||
| TF-12 | hybrid, mc, remote, 11 lbs | ||
| Zotl Pre One |