“The new Double-T 15 is everything I’ve always wanted a 15” speaker to be. The main reason I moved away from 15” speakers was the lack of “punch” that they typically have in comparison to a great 12” speaker. I feel it’s a marriage of all of my favorite characteristics from both 12” and 15” speaker sizes.”
– Travis Toy / Session Artist / Touring Professional.
Manufacturer Spec Sheet
| Specification | |
| Nominal Basket Diameter | 15", 381 mm |
| Nominal Impedance* | 4 Ω |
| Power Rating* | |
| Program Power | N/A |
| Watts | 300 W |
| Resonance | 56 Hz |
| Usable Frequency Range | 50 Hz - 3.3 kHz |
| Sensitivity* | 101 dB |
| Magnet Weight | 11 oz. |
| Gap Height | 0.36", 9.1 mm |
| Voice Coil Diameter | 3", 76 mm |
| Thiele & Small Parameters | |
| Resonant Frequency (fs) | 56 Hz |
| DC Resistance (Re) | 3.18 Ω |
| Coil Inductance (Le) | 0.4m H |
| Mechanical Q (Qms) | 9.71 |
| Electromagnetic Q (Qes) | 0.34 |
| Total Q (Qts) | 0.33 |
| Compliance Equivalent Volume (Vas) | 111.97 liters / 3.95 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 119.9 cc |
| Mechanical Compliance of Suspension (Cms) | 0.11 mm/N |
| BL Product (BL) | 15.76 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 74 grams |
| Efficiency Bandwidth Product (EBP) | 167 |
| Maximum Linear Excursion (Xmax) | 1.4 mm |
| Surface Area of Cone (Sd) | 856.3 cm2 |
| Maximum Mechanical Limit (Xlim) | 0 mm |
| Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | N/a |
| Vented | N/a |
| Driver Volume Displaced | 0.09 cu.ft. / 2.54 liters |
| Overall Diameter | 15.32", 389.1 mm |
| Baffle Hole Diameter | 14", 355.6 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.28", 7.1mm |
| Mounting Holes B.C.D. | 14.56", 369.8mm |
| Depth | 6.63", 168.3 mm |
| Net Weight | 7.7 lbs, 3.49 kg |
| Shipping Weight | 9.9 lbs, 4.49 kgs |
| Materials of Construction | |
| Coil Construction | Copper voice coil |
| Coil Former | Polyimide former |
| Magnet Composition | Neodymium magnet |
| Core Details | Vented core |
| Basket Materials | Die-cast aluminum basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth edge |
| Dust Cap Composition | Paper dust cap |