Specification Sheet

20 Hz 50 100 200 500 1K 2K 5K 10K20K
dBSPL
70
75
80
85
90
95
100
105
110
Ohm
8
9
10
20
30
40
50
60
70
80
90
100
200
300
SPL vs Freq
Copper voice coil
Paper former
Alnico magnet
Non-vented core
Pressed steel basket
Paper cone
Paper cone edge
Zurette dust cap
ACCEPTABLE
ACCEPTABLE
12.17’’, 309.1 mm
11.13’’, 282.7 mm
6.25”, 158.8 mm
Yes
N/A
0.24’’, 6.1 mm
11.75’’, 298.5 mm
8.4 lbs , 3.81 kg
10.2 lbs , 4.63 kg
12”, 305 mm
8 Ω
40 W
75 Hz
80 Hz – 5 kHz
100.7 dB
7 Ω
0.53
35 oz.
0.313”, 8 mm
1.75”, 44 mm
Eric Johnson Signature
FREQUENCY RESPONSE
*
EJ-1240
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.
Specification MaterialS of conStructionMountinG inforMation
Nominal Basket Diameter
Nominal Impedance*
Power Rating**
Resonance (Fs)
Usable Frequency Range
Sensitivity***
DC Resistance (Re)
Qts
Magnet Weight
Gap Height
Voice Coil Diameter
Enclosure Type
Closed Back
Open Back
Overall Diameter
Baffle Hole Diameter
Depth
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter
Mounting Holes B.C.D.
Net Weight
Shipping Weight
* See footnotes on page 2 for information regarding nominal impedance, power rating and sensitivity.
12”
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