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Eminence EJ1240: 12 inch Alnico Guitar Speaker Eric Johnson Signature Series

Price: $259.99 $249.99

Eric Johnson, George Alessandro and Eminence have teamed up once again to reinvent vintage tone. Through a reformulated paper cone and optimized basket design, the 40 watt EJ-1240 offers vintage Alnico tone with tight, punchy lows, nice lower-mid growl, crisp upper-mids, and very controlled, articulate, and open highs.
40 watts / 80-5kHz / 1.75″ voice coil
Available in 8 or 16 ohms

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SKU: EJ1240 Categories: , , ,

Description

Eminence EJ1240: 12″ Alnico Guitar Speaker Eric Johnson Signature Series

Eric Johnson, George Alessandro and Eminence have teamed up once again to reinvent vintage tone. Through a reformulated paper cone and optimized basket design, the 40 watt EJ-1240 offers vintage Alnico tone with tight, punchy lows, nice lower-mid growl, crisp upper-mids, and very controlled, articulate, and open highs.

Click Here to Download the 8 ohm PDF Spec Sheet

Click Here to Download the 16 ohm PDF Spec Sheet

8 ohm Specs:

Nominal Basket Diameter 12″, 305 mm

Nominal Impedance* 8 Ω

Power Rating** Watts 40 W

Music Program N/A

Resonance 75 Hz

Usable Frequency Range 80 Hz- 5 kHz

Sensitivity*** 100.7 dB

Magnet Weight 35 oz.

Gap Height 0.313″, 8 mm

Voice Coil Diameter 1.75″, 44 mm

Thiele & Small Parameters:

Resonant Frequency (fs) 75 Hz

DC Resistance (Re) 7 Ω

Coil Inductance (Le) 0.6m H

Mechanical Q (Qms) 20.09

Electromagnetic Q (Qes) 0.54

Total Q (Qts) 0.53

Compliance Equivalent Volume (Vas) 71.19 liters / 2.51 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 64.4 cc

Mechanical Compliance of Suspension (Cms) 0.19 mm/N

BL Product (BL) 12.08 T-M Diaphragm Mass Inc.

Airload (MMs) 24 grams

Efficiency Bandwidth Product (EBP) 140

Maximum Linear Excursion (Xmax) 1.24 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 0.079 cu.ft. / 2.24 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 6.25″, 158.8 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 Zurette dust cap

16 ohm Specs:

Nominal Basket Diameter 12″, 305 mm

Nominal Impedance* 16 Ω

Power Rating** Watts 40 W

Music Program N/A

Resonance 73 Hz

Usable Frequency Range 80 Hz- 5 kHz

Sensitivity*** 100.6 dB

Magnet Weight 35 oz.

Gap Height 0.313″, 8 mm

Voice Coil Diameter 1.75″, 44 mm

Thiele & Small Parameters:

Resonant Frequency (fs) 73 Hz

DC Resistance (Re) 14.28 Ω

Coil Inductance (Le) 0.95m H

Mechanical Q (Qms) 18.12

Electromagnetic Q (Qes) 0.64

Total Q (Qts) 0.62

Compliance Equivalent Volume (Vas) 74.96 liters / 2.65 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 64.4 cc

Mechanical Compliance of Suspension (Cms) 0.2 mm/N

BL Product (BL) 15.58 T-M Diaphragm Mass Inc.

Airload (MMs) 24 grams

Efficiency Bandwidth Product (EBP) 115

Maximum Linear Excursion (Xmax) 1.24 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 0.079 cu.ft. / 2.24 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 6.25″, 158.8 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 Zurette dust cap