| Model NO. | MA4120 |
| Communication | Post Amplifier, Amplifier Combined, Pre-amplifier |
| Function | 4 |
| Jack Type | Push-Pull Amplifier |
| Use | Speakon Connectors |
| Keyword | XLR Type, 3 Pin Male |
| Specification | 0.775V /1.0V /1.4V |
| Origin | 66.5*57*19.8 |
| Type | Transistor Amplifier |
| Usage | 4.1 |
| Jack Diameter | AC 220V |
| Style | D |
| Battery Indicator | Combo XLR Type, 3pin |
| Transport Package | 20K?? Balanced/ 10K?? Unbalanced |
| Trademark | Cartons |
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