Item #: EMI EJ1240 LIST

Eminence EJ1240 Eric Johnson 12 Inch Guitar Speaker 40 Watts


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Product Description

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.

Product Specifications
Eminence EJ-1240 Eric Johnson - 12" Guitar Speaker Specifications
  • Nominal Basket Diameter: 12 inch, 305 mm
  • Power Rating: 40 W
  • Resonance: 75 Hz
  • Usable Frequency Range: 80 Hz - 5 kHz
  • Sensitivity: 100.7 dB
  • Magnet Weight: 35 oz.
  • Gap Height: 0.313 inch, 8 mm
  • Voice Coil Diameter: 1.75 inch, 44 mm
  • Resonant Frequency (fs): 75 Hz
  • DC Resistance (Re): 7 O
  • 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
  • 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
Helpful Info about the Manufacturer
Phone:  502-845-5622 Warranty:  Warranty: 7 years
JT in Katy, TX Submitted: 10/24/2017
Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
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Subject
I love this speaker!!
Product Rating
What is your opinion of this product?
I was looking for a replacement speaker for one of my Blues Junior III amp. I am mainly a Les Paul guy, but also play Tele's, ES175 and ES335 and since I play alot of classic/southern rock, the blues, country, rockabilly - I really wanted an Alnico magnet for that more vintage sound. This speaker did not disappoint!! It sounds great and is very articulate in it's response. I can drive the pre-amp tubes and get great tube break up which is great for the music I play and the cleans are amazing as well. I am not a pedal guy, so I have not tried any. The depth of the speaker (6.25") is about the maximum depth you can put in a Blues Jr while still allowing you to close the back panel and not have the heat shield laying on the magnet. It may be on the expensive side, but I look at it as buy it once and I get years of enjoyment. If you play the same styles of music, you will not be disappointed!!
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