QC66 Quality Control
| Brand | Auratone |
| Manufacturer | Auratone Corporation |
| Function | Speaker |
| Produced | 1983 |
| Country | United States |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 41.9 × 34.3 × 31.8 cm (W × H × D) |
| Weight | 15.9kg |
| Frequency Response | 50Hz-20kHz ±2dB |
| Upper Treble | 0.75" Polyamide Fiber Dome |
| Treble | 1.25" Textile Dome |
| Midrange/Bass | 6.5" Polypropylene Cone (x2) |
| Sensitivity | 90dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 2.2kHz, 6kHz |
| Crossover Slope | 12dB/Oct, 18dB/Oct (Second Order, Third Order) |
| Power Handling (Program) | 100W |
| Enclosure Type | Bass Reflex |
| Finish | Walnut Vinyl |
| MSRP (1983) | $695 (Per Pair) |