Speaker - Eminence® Signature, 12", GA-SC64, 40W, 8Ω

Signature Guitar 12" speakers. Vintage American ceramic magnet tone approved by legendary amp builder, George Alessandro. Well-balanced from top to bottom with tight, full lows, warm mids, and warm, but open highs

Product Measurements

Diameter: 12 in.
Nominal Basket Diameter: 12 in.
Nominal Impedance: 8 Ω
Power Rating: 40 W
Resonance: 88 Hz
Usable Frequency Range: 80 Hz - 5.3 kHz
Sensitivity: 100.5 dB
Magnet Weight: 38 oz.
Gap Height: 8 mm
Voice Coil Diameter: 1.75 in.
Resonance Frequency (ƒS): 88 Hz
D.C. Resistance (Re) : 7.63 Ω
Coil Inductance (le): 0.67 mH
Mechanical Q Factor (QMS): 16.82
Electrical Q Factor (Qes): 0.6
Total Q Factor (QTS): 0.58
Equivalent Acoustic Volume (VAS): 44.96 liters
Peak Diaphragm Displacement Volume (vd): 83.8 cm3
Mechanical Compliance (CMS): 0.12 mm/N
Force Factor (BxL): 13.8 Wb/m
Mechanical Moving Mass (MMS): 27 g
Efficiency Bandwidth Product (ebp): 146
Linear Displacement, maximum (XMAX): 1.23 mm
Surface Area Of Cone (sd): 519.5 cm2
Recommended Enclosure Volume, sealed: Acceptable
Recommended Enclosure Volume, vented: Acceptable
Driver Volume Displaced: 2 liters
Overall Diameter: 309.1 mm
Baffle Hole Diameter: 11.13 in.
Front Sealing Gasket: Yes
Mounting Hole Diameter: 6.1 mm
Mounting Hole Bolt Circle Diameter: 298.5 mm
Depth: 5.13 in.
Coil Construction: copper voice coil
Coil Former: Paper former
Magnet Composition: Ferrite
Core Details: Non-vented core
Basket Material: Pressed Sheet Steel
Cone Composition: Paper cone
Cone Edge Composition: Paper cone edge
Dust Cap Composition: Solid composition felt dust cap