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The 6174 18" transducer is an ultra-high performance woofer designed to reproduce low and extended low frequency material at very high SPL's. The 6174's twin coupled magnet structures increase the power handling to 800w RMS / 1600w PROGRAM, while the system's convective cooling chambers actively dissapate heat. The 6174 offers over 2" of controlled, peak to peak cone excursion for exceptional performance, making it an ideal choice in high performance applications like touring class sound systems and theme park installations. OK, OK, it's might be considered a bit much for my den, but I like them because they
ROCK !!
Features:
4" Inwound Voice Coil
Poured Cast Aluminum Basket
Natural fiber ribbed Cone
Twin Coupled Magnet Structures
High Excursion Santoprene Surround
Multi-Layer Suspension
Field Serviceable Basket Assembly
2" Dissapation Vent
Nickel Plated Brass Terminal Posts
| Nominal Diameter | 18" / 457.2mm |
| Rated Impedance | 4 or 8 ohms |
| Power Capacity | 1600 W cont. program |
| Sensitivity (1w / 1m) | 94 dB |
| Frequency Range | 15 Hz - 800 Hz |
| Highest Recommended X-Over | 500 Hz |
| Recommended Enclosure Volume | 6-12 ft³ |
| Effective Piston Diameter | 406mm / 16" |
| Voice Coil Material | Copper Clad Aluminum |
| Voice Coil Diameter | 100mm / 4" |
| Magnetic Coil Gap | 0.4 / 10.1mm |
| Magnetic Assembly Weight | 26 lbs / 11.8kgs |
| Flux Density | 13,500 gauss |
| Bl Factor | 15.3 T*m(8) |
| Moving Mass | 0.222 kg |
| Fs Free Air Resonance | 20 Hz |
| Re D.C. Coil Resistance | 3.3(4) 5.6(8) ohms |
| Qts Total Quality Factor | 0.340 |
| Qms Mechanical Losses | 2.900 |
| Qes Electrical Losses | 0.380 |
| Vas Equivalent Volume of Air | 25.9ft³ |
| Sd Effective Piston Area | 199 in³ |
| Xmax Excursion - Max Bl | 15.2 mm / 0.6" |
| Vd Sd x Xmax | 200 in³ |
| Le Inductance of V.C. | 1.1 mH |
| %eff Mid Band Effeciency | 0.66% |
| Pe Max Power Rating | 800 W RMS sine wave |
| Overall Diameter | 462 mm / 18.20 |
| Overall Depth | 254 mm / 10" |
| Bolt Circle Diameter | 444 mm / 17.5 |
| Front Mount | 425.4 mm / 16.75" |
| Rear Mount | 419 mm / 16.5 |
| Net Weight | 16.3 kg / 36 lbs |