Colossus
| Brand | Kustom Acoustics |
| Manufacturer | Kustom Acoustics Inc. |
| Function | Speaker |
| Produced | 1976 |
| Country | United States |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 91.4 × 182.9 × 50.8 cm (W × H × D) |
| Weight | 460lbs |
| Treble | 0.75" Dome (x4) |
| Midrange | 5" Cone (x4) |
| Bass | 12" Paper Cone (x8) |
| Impedance (Nominal) | 4Ω, 1Ω (User Selectable) |
| Crossover Frequencies | 775Hz, 3.5kHz |
| Power Handling | 600W |
| Enclosure Type | Transmission Line (TAL (Tapered Acoustical Line)) |
| MSRP (1976) | $1695 |