DOUBLE-T 15 | 15" Signature Guitar Speaker - Neodymium

“The new Double-T 15 is everything I’ve always wanted a 15-inch speaker to be. The main reason I moved away from a 15-inch speaker was the lack of “punch” that they typically have in comparison to a great 12-inch speaker. I feel it’s a marriage of all of my favorite characteristics from both 12-inch and 15-inch speaker sizes.” – Travis Toy / Session Artist / Touring Professional. Characteristics    Series Signature Model Double-T 15 Application 15" Open or Closed Back Configuration 1 or 2x15" Low End Response Aggressive Low End Shape Tight/Punchy Mid-Range Response Moderate Mid-Range Shape Warm High-End Response Moderate Volume/Power Louder Overall Coloration* 15" version of the lightweight and popular Double T12.  Still tight and punchy in the lows, but more firm and defined with a nice high-end roll off. Break-up Modes 0 Power Range 0 Instrument* Steel Guitar Genre of Music* Country and Blues Specifications Download 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 Frequency Response