JS-1250 12" Signature Guitar Speaker

Respected as much for his tone as his guitar skills, Josh Smith's concept for the ultimate guitar speaker involved combining the lows of the Eminence Tonespotter, the clean highs of the Wizard, and the natural grit and sparkle of the Red Fang. The result is an extremely versatile speaker with vintage tone and the ability to handle the power of modern amps. Characteristics    Series Signature Model JS-1250 Application 12" Open or Closed Back Configuration 1, 2 or 4x12" Low End Response Aggressive Low End Shape Fat/Round Mid-Range Response Aggressive Mid-Range Shape Warm High-End Response Aggressive Volume/Power Louder Overall Coloration* An extremely versatile speaker with vintage tone and the ability to handle the power of modern amps. Break-up Modes Medium Power Range Up to 50 watts Instrument* Lead/Rhythm Guitar Genre of Music* Blues, Rock, Country Specifications Download Spec Sheet SPECIFICATION Nominal Basket Diameter 12", 0 mm Nominal Impedance* 8 Ω Power Rating* Program Power N/A Watts 50 W Resonance 92 Hz Usable Frequency Range 80 Hz - 5.2 kHz Sensitivity* 101.4 dB Magnet Weight 38 oz. Gap Height 0.313", 8 mm Voice Coil Diameter 1.75", 44 mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 92 Hz DC Resistance (Re) 6.42 Ω Coil Inductance (Le) 0.5m H Mechanical Q (Qms) 15.69 Electromagnetic Q (Qes) 0.63 Total Q (Qts) 0.61 Compliance Equivalent Volume (Vas) 41.21 liters / 1.46 cu.ft. Peak Diaphragm Displacement Volume (Vd) 41 cc Mechanical Compliance of Suspension (Cms) 0.11 mm/N BL Product (BL) 12.91 T-M Diaphragm Mass Inc. Airload (MMs) 28 grams Efficiency Bandwidth Product (EBP) 145 Maximum Linear Excursion (Xmax) 0.79 mm Surface Area of Cone (Sd) 519.5 cm2 Maximum Mechanical Limit (Xlim) 0 mm MOUNTING INFORMATION Recommended Enclosure Volume Sealed N/a Vented N/a Driver Volume Displaced 0.071 cu.ft. / 2 liters Overall Diameter 12.17", 309.1 mm Baffle Hole Diameter 11.13", 282.7 mm Front Sealing Gasket Yes Rear Sealing Gasket N/A Mounting Holes Diameter 0.24", 6.1mm Mounting Holes B.C.D. 11.75", 298.5mm Depth 5.23", 132.8 mm Net Weight 8 lbs, 3.63 kg Shipping Weight 9.8 lbs, 4.45 kgs MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil Coil Former Nomex former Magnet Composition Ferrite magnet Core Details Non-vented core     Basket Materials Pressed steel basket Cone Composition Cone Edge Composition Full molded paper Dust Cap Composition Zurette dust cap Frequency Response