Eminence Legend CB158 15" 300W Bass Speaker
The Eminence Legend CB158 15" Bass Speaker delivers the full, round bass tone you want from a 15" speaker. Recommended for professional bass guitar applications in a sealed or vented enclosure.
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- Nominal Basket Diameter: 15", 381mm
Nominal Impedance*: 8 ohms
Power Rating**: 300W
Usable Frequency Range: 47Hz-3kHz
Magnet Weight: 80 oz.
Gap Height: 0.375", 9.53mm
Voice Coil Diameter : 2.5", 63.5mm
Thiele & Small Parameters
Resonant Frequency (fs): 34Hz
DC Resistance (Re): 6.15
Coil Inductance (Le): 0.33mH
Mechanical Q (Qms): 5.9
Electromagnetic Q (Qes): 0.36
Total Q (Qts): 0.34
Compliance Equivalent Volume (Vas): 336 liters / 11.9 cu. ft.
Peak Diaphragm Displacement Volume (Vd): 411cc
Mechanical Compliance of Suspension (Cms): 0.31mm/N
BL Product (BL): 16.0 T-M
Diaphragm Mass inc. Airload (Mms): 70 grams
Efficiency Bandwidth Product (EBP): 95
Maximum Linear Excursion (Xmax): 4.8mm
Surface Area of Cone (Sd): 856.3 cm2
Maximum Mechanical Limit (Xlim): 9.5mm
Recommended Enclosure Volume
Sealed: 54-65 liters/ 1.9-2.3 cu.ft.
Vented: 54-159 liters/ 1.9-5.6 cu.ft.
Overall Diameter: 15.21", 386.4mm
Baffle Hole Diameter: 14.0", 355.3mm
Front Sealing Gasket: fitted as standard
Rear Sealing Gasket: fitted as standard
Mounting Holes Diameter: 0.28", 7.1mm
Mounting Holes B.C.D.: 14.56", 369.9mm
Depth: 6.5", 165mm
Net Weight: 17.3 lbs., 7.9 kg
Shipping Weight: 19.4 lbs., 8.8 kg
Materials of Construction
Copper voice coil
Vented and extended core
Die-cast aluminum basket
Cloth cone edge
Solid composition paper dust cap
*Please inquire about alternative impedances.
**Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
***The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms.
Eminence response curves are measured under the following conditions: All speakers are tested at 1w/1m using a variety of test set-ups for the appropriate impedance " LMS using 0.25" supplied microphone (software
calibrated) mounted 1m from wall/baffle " 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction " Hafler P1500 Trans-Nova amplifier " 2700 cu.ft. chamber with
fiberglass on all six surfaces (three with custom-made wedges).