21-inch Tour Grade
American Muscle
Arguably the best 21-inch subwoofer on the market. Advanced measurement systems and FEA optimization tools were implemented on this next generation of Tour Grade worthy subwoofers by Eminence. The result is absurd, unrivaled displacement and exceptionally high power handling with top-of-the-line performance in small to large-vented enclosures.
Applications
Subwoofer | Pro Audio
Box Type: Vented
Specifications
| SPECIFICATION | |
| Nominal Basket Diameter | 21", 533 mm |
| Nominal Impedance* | 6 Ω |
| Power Rating* | |
| Program Power | 5000 W |
| Watts | 2500 W |
| Resonance | 29 Hz |
| Usable Frequency Range | 25 Hz - 0.6 kHz |
| Sensitivity* | 97.0 dB |
| Magnet Weight | 45 oz. |
| Gap Height | 0.75", 19 mm |
| Voice Coil Diameter | 6", 152 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 29 Hz |
| DC Resistance (Re) | 3.8 Ω |
| Coil Inductance (Le) | 1.38m H |
| Mechanical Q (Qms) | 15.35 |
| Electromagnetic Q (Qes) | 0.31 |
| Total Q (Qts) | 0.31 |
| Compliance Equivalent Volume (Vas) | 224.58 liters / 7.93 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 3448.2 cc |
| Mechanical Compliance of Suspension (Cms) | 0.06 mm/N |
| BL Product (BL) | 33.79 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 508 grams |
| Efficiency Bandwidth Product (EBP) | 94 |
| Maximum Linear Excursion (Xmax) | 21 mm |
| Surface Area of Cone (Sd) | 1642 cm2 |
| Maximum Mechanical Limit (Xlim) | 40.4 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | N/a |
| Vented | 155.74-481.39 liters / 5.50-17.00 cu.ft. |
| Driver Volume Displaced | 0.379 cu.ft. / 10.72 liters |
| Overall Diameter | 21.65", 549.9 mm |
| Baffle Hole Diameter | 19.83", 503.7 mm |
| Front Sealing Gasket | YES |
| Rear Sealing Gasket | |
| Mounting Holes Diameter | 0.34", 8.6mm |
| Mounting Holes B.C.D. | 20.67", 525mm |
| Depth | 10.39", 263.9 mm |
| Net Weight | 48.1 lbs, 21.82 kg |
| Shipping Weight | 51.6 lbs, 23.41 kgs |
| MATERIALS OF CONSTRUCTION | |
| Coil Construction | I/O Copper voice coil |
| Coil Former | Fiberglass former |
| Magnet Composition | Neodymium magnet |
| Core Details | Vented motor |
| Basket Materials | Die-cast aluminum basket |
| Cone Composition | Wet pressed, X5 cone pulp |
| Cone Edge Composition | Advanced Polycotton surround |
| Dust Cap Composition | Wet pressed, X5 dust cap pulp |
Spec Sheet and Cab Designs
Download Spec Sheet Download Cab Design
Frequency Response
