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Eminence GA-SC64: 12″ Guitar Speaker by George Alessandro

Price: $104.99 $99.99

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.
40 watts / 80-5.3kHz / 1.75″ voice coil
Available in 8 or 16 ohms

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SKU: GA-SC64 Categories: , , ,

Description

Eminence GA-SC64: 12″ Guitar Speaker by George Alessandro

Click Here to Download PDF Spec Sheet

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. Eminence and George Alessandro have teamed up once again to develop a 12” guitar speaker with vintage sounds circa 1964, the GA-SC64.Well-balanced from top to bottom, the GA-SC64’s warm, dynamic character lends itself to vintage amps as well as modern gain and distortion. The traditional build materials offer warmth, dynamics, low note articulation and proper distorted harmonic content layering. “The early 1960’s was a time when things were simpler. Studios were recording with one or two analog tape tracks. Stereo records were high tech, and hum canceling pickups were still awaiting a patent.” said George Alessandro, President, Alessandro High-End Products. “The warm, full character of the GA-SC64 brings you back to those days when used in vintage amps. While many things have advanced in 50 years, the tone of 1964 still rings true with this unique guitar speaker.”

Specs:

Nominal Basket Diameter 12″, 305 mm

Nominal Impedance* 8 Ω

Power Rating**

Watts 40 W

Music Program N/A

Resonance 88 Hz

Usable Frequency Range 80 Hz- 5.3 kHz

Sensitivity*** 100.5 dB

Magnet Weight 38 oz.

Gap Height 0.313″, 8 mm

Voice Coil Diameter 1.75″, 44 mm

Thiele & Small Parameters:

Resonant Frequency (fs) 88 Hz

DC Resistance (Re) 7.63 Ω

Coil Inductance (Le) 0.67m H

Mechanical Q (Qms) 16.82

Electromagnetic Q (Qes) 0.6

Total Q (Qts) 0.58

Compliance Equivalent Volume (Vas) 44.96 liters / 1.59 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 83.8 cc

Mechanical Compliance of Suspension (Cms) 0.12 mm/N

BL Product (BL) 13.8 T-M Diaphragm Mass Inc.

Airload (MMs) 27 grams

Efficiency Bandwidth Product (EBP) 146

Maximum Linear Excursion (Xmax) 1.23 mm

Surface Area of Cone (Sd) 519.5 cm2

Maximum Mechanical Limit (Xlim) N/A

Mounting Information:

Recommended Enclosure Volume

Sealed Acceptable

Vented Acceptable

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 5.13″, 130.2 mm

Net Weight 7.5 lbs, 3.4 kg

Shipping Weight 8.4 lbs, 3.81 kgs

Materials of Construction:

Coil Construction Copper voice coil

Coil Former Paper former

Magnet Composition Ferrite 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