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Eminence EJ-1240 - 16 ohm 12" 40W Eric Johnson Signature Guitar Speaker

Eminence EJ-1240 - 16 ohm 12" 40W Eric Johnson Signature Guitar Speaker
Ship weight
4.64 kg
Priced per:
16 ohm
Your price:
CDN $386.97
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Eric Johnson, George Allesandro 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.

Speaker Detail
Nominal Basket Diameter12", 305 mm
Nominal Impedance*16 Ω
Power Rating*
Program PowerN/A
Watts40 W
Resonance73 Hz
Usable Frequency Range80 Hz - 5 kHz
Sensitivity*100.6 dB
Magnet Weight35 oz.
Gap Height0.31", 8 mm
Voice Coil Diameter1.75", 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 Displaced0.079 cu.ft. / 2.24 liters
Overall Diameter12.17", 309.1 mm
Baffle Hole Diameter11.13", 282.7 mm
Front Sealing GasketYes
Rear Sealing GasketN/A
Mounting Holes Diameter0.24", 6.1mm
Mounting Holes B.C.D.11.75", 298.5mm
Depth6.25", 158.8 mm
Net Weight8.4 lbs, 3.81 kg
Shipping Weight10.2 lbs, 4.63 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerPaper former
Magnet CompositionAlnico magnet
Core DetailsNon-vented core
Basket MaterialsPressed steel basket
Cone CompositionPaper cone
Cone Edge CompositionPaper cone edge
Dust Cap CompositionZurette dust cap
response graph

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This item: Eminence EJ-1240 - 16 ohm 12" 40W Eric Johnson Signature Guitar Speaker [1 item(s)]
Price for all: CDN $386.97
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