De'Longhi La Specialista Arte EC9155 vs De'Longhi La Specialista Opera EC9555.M
Side-by-side specs, source-checked. Prices are manufacturer reference (€).
| Spec | De'Longhi La Specialista Arte EC9155 | De'Longhi La Specialista Opera EC9555.M |
|---|---|---|
| Type | Thermoblock | Thermoblock |
| Price (€) | $702 | $755 |
| Boiler | single thermoblock heating system | Advanced thermoblock heating system with PID control and three selectable brew temperatures |
| Boiler material | — | — |
| PID | no | yes |
| Pre-infusion | none | none |
| Group head | 51mm pressurized/non-pressurized commercial-style | — |
| Pump | vibratory | — |
| Plumbable | no | no |
| Reservoir (L) | 1.7 | 2 |
| Heat-up (min) | — | — |
| Power (W) | 1550 | 1550 |
| Weight (kg) | 9.8 | 13.2 |
| Origin | — | China |
| Released | 2022 | — |
De'Longhi La Specialista Arte EC9155 source · De'Longhi La Specialista Opera EC9555.M source
Specs verified against manufacturer/retailer sources — see our sourcing & methodology. Last checked: Aug 3, 2026. Spot an error?