Eighteen Sound 8M400

Eighteen Sound 8M400
Eighteen Sound 8M400
Eighteen Sound 8M400
General Specifications Datasheet
Brand Eighteen Sound
Reference 8M400
Manufacturer website www.eighteensound.com
Size 8 in
200 mm
Type Low Frequency
Impedance Z 8 Ω
Minimum impedance Zmin 6.5 Ω
Nominal Power P 250 W
Program Power Pmax 320 W
Sensitivity SPL 100.5 dB
Usable frequency range 120 - 6100 Hz
Recommended crossover 4000 Hz
Eighteen Sound 8M400 Frequency response
Eighteen Sound 8M400 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 90 Hz
Surface area of cone Sd 227 cm²
DC resistance Re 5.2 Ω
Mechanical Q Qms 6.20
Electromagnetic Q Qes 0.28
Total Q factor Qts 0.27
Mechanical suspension compliance Cms 222 µm/N
Compliance equivalent air volume Vas 16.2 liters
Moving mass Mmd 12.03 g
Moving mass (including airload) Mms 14 g
Mechanical resistance Rms 1.28 N·s/m
BL product BL 12.2 T·m
Voice coil inductance Le 0.95 mH
Maximum linear excursion (one way) Xmax 3 mm
Maximum mechanical limit (one way) Xlim 6.5 mm
Efficiency η₀ 4.07 %
Efficiency bandwidth product EBP 321
Effective diaphragm diameter Ø 17 cm
Import this driver in a simulation software:
WinISD 18Sound 8M400.wdr
Hornresp 18Sound 8M400.txt
Basta! 18Sound 8M400.bastaelement
Eighteen Sound 8M400 Dimensions
Dimensions
Overall diameter 210.0 mm
Baffle hole diameter 184.0 mm
Overall depth 105.5 mm
Flange thickness 14.5 mm
Net weight 4.5 kg
Materials of construction
Diaphragm material Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 51 mm
Coil material Aluminum
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 8M400 250 101 90 227 6.20 0.28 16 3.0
Eminence DELTA PRO-8A 225 98 69 218 6.43 0.22 18 3.0
Eminence DELTA PRO-8B 225 99 71 219 7.47 0.27 18 3.0
B&C Speaker 8PE21 200 98 87 220 3.80 0.20 13 3.5
SICA 8 C 2 CP 200 97 79 214 4.55 0.32 15 3.5
SICA 8 N 2,5 PL 300 96 77 214 4.21 0.33 14 3.5
Beyma 8G40 250 95 70 220 6.83 0.38 17 4.5
Beyma 8LW30 250 95 70 220 7.00 0.39 16 4.5
Eminence BETA-8CX 250 93 62 210 6.57 0.31 21 3.2
Beyma 8MI100 250 98 90 220 8.50 0.60 13 1.0
B&C Speaker 8NDL64 16Ω 350 97 73 220 6.80 0.25 12 4.5

LoudspeakerDatabase.com is not affiliated with Eighteen Sound. This page may contain errors or inaccuracies. Please check the up-to-date specifications on the manufacturer website before starting your project.

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