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.

CALIFORNIA PROPOSITION 65 WARNING
warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
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Helpful Info about the Manufacturer
Phone:  502-845-5622 Warranty:  Warranty: 7 years

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

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