Impulse
| Brand | Kustom Acoustics |
| Manufacturer | Kustom Acoustics Inc. |
| Function | Speaker |
| Produced | 1978 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 35.6 × 61 × 22.9 cm (W × H × D) |
| Weight | 46lbs |
| Frequency Response | 39Hz-22kHz ±3dB |
| Treble | 1" Dome |
| Midrange | 5" Aluminum Cone |
| Bass | 12" Cone |
| Sensitivity | 91dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 750Hz, 2.5kHz |
| Recommended Amplifier Power | 10-150W |
| Power Handling (Program) | 200W |
| Enclosure Type | Transmission Line (TAL (Tapered Acoustical Line)) |
| Finish | Walnut |
| MSRP (1979) | $239 |