Eighteen Sound 8NMB420 4 Ohm 8″ 280W Loudspeaker

Eighteen Sound 8NMB420 4 Ohm 8″ 280W Loudspeaker

General Specifications:

• Nominal Diameter 8”, 200 mm
• Rated Impedance 4Ω
• AES Power 280 W (rms)
• Program Power 400 W
• Peak Power 800 W
• Sensitivity 95 dB
• Frequency Range 60 – 5500 Hz
• Power Compression @-10dB 0,8 dB
• Power Compression @-3dB 1,7 dB
• Power Compression @Full Power 2,2 dB Max Recomm.
• Frequency 2500 Hz Recomm. Enclosure Volume 10 – 40 lt. (0.35 – 1.41 cuft)
• Minimum Impedance 5.9Ω at 25°C Max Peak To Peak Excursion 19 mm, 0.7”
• Voice Coil Diameter 51 mm, 2”
• Voice Coil winding material aluminium Suspension M-roll, Polycotton
• Cone Curvilinear, Treated paper

Mounting Informations:

• Overall diameter 210 mm, 8.3”
• N. of mounting holes and bolt 6
• Mounting holes diameter 6 mm, 0.23”
• Bolt circle diameter 195-198 mm, 7.68-7.8”
• Front mount baffle cutout ø 186 mm, 7.3”
• Rear mount baffle cutout ø 184 mm, 7.2”
• Total depth 99 mm, 3.9”
• Flange and gasket thickness 14.5 mm, 0.6”
• Net weight 1.7 kg, 3.7 lb
• Shipping weight 2.0 kg, 4.4 lb
• Packaging Dimensions 235 x 235 x 150 mm (9.25 x 9.25 x 5.91”)

Thiele Small Parameters:

• Fs 61 Hz
• Re 5Ω
• Sd 0.022 sq.mt. (34.1 sq.in.)
• Qms 4
• Qes 0.31
• Qts 0.28
• Vas 33 lt. (1.2 cuft)
• Mms 14.9 gr. (0.033 lb)
• BL 10 Tm
• Linear Mathematical Xmax ± 5.75 mm (± 0.23”)
• Le (1 kHz) 0.35 mH
• Ref. Efficiency 1W@1m (half space) 95.6 dB

Key Features:

• 95 dB SPL 1W / 1m average sensitivity
• 51 mm, 2” Interleaved Sandwich Voice coil (ISV)
• 280 W AES power handling
• External neodymium magnet assembly
• Single Demodulating Ring (SDR) for lower distortion
• Weather protected cone and plates for outdoor usage
• Suitable for line arrays and compact two way systems

Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.

Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk