| Form Factor | Part |
| Signal Path | Passive Hardware |
| Dimensions | 38.6 × 38.6 × 28.2 cm (W × H × D) |
| Weight | 40lbs |
| Frequency Response | 30Hz-22kHz |
| Treble | 2x3 Multicellular Coaxial Horn (Diaphragm P/N: 20502) |
| Midrange/Bass | 15" Paper Cone (Diaphragm P/N: 20841) |
| Impedance (Nominal) | 16Ω |
| Crossover Slope | 12dB/Oct |
| Dispersion (Horizontal) | 90° |
| Dispersion (Vertical) | 40° |
| Compression Diaphragm Material | Aluminum |
| Resonant Frequency (Fs, Woofer) | 40Hz |
| Voice Coil Diameter (Treble) | 1.75" |
| Voice Coil Diameter (Woofer) | 3" |
| Voice Coil Wire Material | Aluminum |
| Voice Coil Wire Geometry | Rectangular |
| Magnet Material | AlNiCo V |
| Power Handling | 35W |
| Magnet Weight (Treble) | 1.2lbs |
| Magnet Weight (Woofer) | 4.4lbs |
| Power Handling (Peak) | 50W |
| MSRP (1957) | $177 |
| Notes | Improved bass cone and crossover network over 604C |
