MA-123
| Brand | Matrecs |
| Function | Speaker |
| Produced | 1977 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 38.1 × 61 × 25.4 cm (W × H × D) |
| Weight | 29lbs |
| Frequency Response | 35Hz-22kHz |
| Treble | 1.75" Paper Cone (Phenolic Ring) |
| Midrange | 4.5" Paper Cone |
| Bass | 12" Paper Cone |
| Impedance (Nominal) | 8Ω |
| Crossover Frequency | 1kHz, 6kHz |
| Enclosure Type | Sealed |
| Finish | Walnut-grained Vinyl |
| MSRP (1977) | $89.95 |