Eighteen Sound 15MB650

Eighteen Sound 15MB650
General Specifications Datasheet
Brand Eighteen Sound
Reference 15MB650
Manufacturer website www.eighteensound.com
Size 15 in
380 mm
Type Low Frequency
Impedance Z 8 Ω
Nominal Power P 400 W
Program Power Pmax 600 W
Sensitivity SPL 101.5 dB
Usable frequency range 50 - 4800 Hz
Recommended crossover 2000 Hz
Eighteen Sound 15MB650 Frequency response
Eighteen Sound 15MB650 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 40 Hz
Surface area of cone Sd 850 cm²
DC resistance Re 5.5 Ω
Mechanical Q Qms 3.95
Electromagnetic Q Qes 0.27
Total Q factor Qts 0.26
Mechanical suspension compliance Cms 205 µm/N
Compliance equivalent air volume Vas 210 liters
Moving mass Mmd 62.71 g
Moving mass (including airload) Mms 77 g
Mechanical resistance Rms 4.9 N·s/m
BL product BL 20 T·m
Voice coil inductance Le 1.36 mH
Maximum linear excursion (one way) Xmax 4 mm
Maximum mechanical limit (one way) Xlim 10 mm
Efficiency η₀ 4.9 %
Efficiency bandwidth product EBP 148
Effective diaphragm diameter Ø 32.9 cm
Import this driver in a simulation software:
WinISD 18Sound 15MB650.wdr
Hornresp 18Sound 15MB650.txt
Basta! 18Sound 15MB650.bastaelement
Eighteen Sound 15MB650 Dimensions
Dimensions
Overall diameter 387.0 mm
Baffle hole diameter 357.0 mm
Overall depth 167.5 mm
Flange thickness 19.5 mm
Net weight 8.3 kg
Materials of construction
Diaphragm material Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 75 mm
Coil material Copper
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 15MB650 400 102 40 850 3.95 0.27 210 4.0
Eminence DELTA PRO-15A 400 102 42 856 4.73 0.44 244 4.3
Celestion FTX1530 400 97 43 855 4.47 0.29 220 4.0
Eighteen Sound 15MB700 400 103 42 850 4.60 0.31 202 5.5
Celestion TF1530SL 350 98 41 855 3.30 0.43 176 4.0
Eminence DELTALITE II 2515 300 99 42 856 4.56 0.41 204 4.8
Eighteen Sound 15MB606 400 101 43 850 6.20 0.37 223 4.5
Celestion NTR15-3018E 450 98 35 854 3.86 0.26 226 5.0
Precision Devices PD.153C002 450 101 38 853 4.03 0.26 263 6.8
Eighteen Sound 15W700 450 99 38 850 3.80 0.33 217 6.5
Eighteen Sound 15ND830 450 98 39 850 3.90 0.35 213 6.5

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