IIIb
| Brand | Rectilinear |
| Manufacturer | Rectilinear Research Corporation |
| Function | Speaker |
| Produced | 1976-1977 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Super Tweeter | 2" Paper Cone (x2) (Part #ST-2) |
| Treble | 2.5" Paper Cone (x2) (Part #T-3, Voice Coil: 0.56", 3oz Ferrite Magnet) |
| Midrange | 5" Paper Cone (Part #JM-5, Voice Coil: 1") |
| Bass | 12" Paper Cone (Part #P-12KFH) |
| Impedance (Nominal) | 8Ω |
| Enclosure Type | Bass Reflex |
| Enclosure Construction | 0.75" Particleboard |
| Connections |
|
| Controls |
|