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Eminence George Alessandro Signature GA-SC59 - 12" 8 Ohm 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
Specification
- Nominal Basket Diameter 12", 305 mm
- Nominal Impedance* 8 Ω
- 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
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