GA-SC59 12" Signature Guitar Speaker

Circa 1959 tone in a vintage American alnico magnet design, approved by George Alessandro. Punchy lows, full lower-mid grunt, and articulate chimey highs balance out this versatile and musical 12” speaker. Characteristics    Series Signature Model GA-SC59 Application 12" Open or Closed Back Configuration 1, 2, or 4 X 12" Low-End Response Moderate Low-End Shape Tight/Punchy Mid-Range Response Moderate Mid-Range Shape Warm High-End Response Aggressive Volume/Power Loudest Overall Coloration* Vintage American Alnico tone approved by George Alessandro.  Tight and punchy with a nice sweet chime from sound circa '59. Break-up Modes Medium Power Range Up to 40 watts Instrument* Lead/Rhythm Guitar Genre of Music* Rock, Blues, Country Specifications Download Spec Sheet SPECIFICATION Nominal Basket Diameter 12", 305 mm Nominal Impedance* 8 Ω Power Rating* Program Power N/A Watts 40 W Resonance 89 Hz Usable Frequency Range 80 Hz - 5.2 kHz Sensitivity* 100 dB Magnet Weight 35 oz. Gap Height 0.313", 7.95 mm Voice Coil Diameter 1.75", 44 mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 89 Hz DC Resistance (Re) 7.4 Ω Coil Inductance (Le) 0.61m H Mechanical Q (Qms) 19.73 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) 83.64 cc Mechanical Compliance of Suspension (Cms) 0.11 mm/N BL Product (BL) 13.55 T-M Diaphragm Mass Inc. Airload (MMs) 28 grams Efficiency Bandwidth Product (EBP) 140 Maximum Linear Excursion (Xmax) 1.61 mm Surface Area of Cone (Sd) 519.5 cm2 Maximum Mechanical Limit (Xlim) 0 mm MOUNTING INFORMATION Recommended Enclosure Volume Sealed Acceptable Vented Acceptable Driver Volume Displaced 0.079 cu.ft. / 2.24 liters Overall Diameter 12.17", 309.12 mm Baffle Hole Diameter 11.13", 282.7 mm Front Sealing Gasket Yes Rear Sealing Gasket Yes Mounting Holes Diameter 0.24", 6.096mm Mounting Holes B.C.D. 11.75", 298.45mm Depth 6.25", 158.75 mm Net Weight 8.4 lbs, 3.81 kg Shipping Weight 10.2 lbs, 4.63 kgs MATERIALS OF CONSTRUCTION Coil Construction Copper voice Coil Coil Former Paper former Magnet Composition Alnico Magnet Core Details Non-vented core     Basket Materials Pressed steel basket Cone Composition Paper cone Cone Edge Composition Paper cone edge Dust Cap Composition Solid composition felt dust cap Frequency Response