Eminence GA-SC59 12'' Signature Guitar Speaker - 40 Watt GA-SC59 12'' Signature Guitar Speaker - 40 Watt

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.

Specifications

Characteristics
Series: Signature
Model: GA-SC59
Application: 12" Open or Closed Back
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

General
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