BMS 12N820 4 Ohm 12″ 800W Loudspeaker

BMS 12N820 4 Ohm 12″ 800W Loudspeaker

General Specifications:

• BMS 12N820 Application Low-Middle
• Nominal Impendance: 4Ω
• Power handling AES noise: 800 W (rms)
• Sensitivity (1 W / 1 m): 98 dB
• Frequency response: 45 – 1700 Hz
• Voice Coil Diameter: 4″, 101.6 mm
• Voice Coil Material: Cu
• Voice Coil Winding Depth: 19 mm
• Magnet Gap Depth: 10 mm
• Basket: Cast Aluminium
• Effect. diaphragm diameter D 260 mm

Mounting Information:

• Overall Diameter: 318 mm
• Mounting Holes Diameter: 8 x (7 x 8) mm
• Bolt Circle Diameter: 300 mm
• Baffle cut-out Diameter: 284 mm
• Overall depth: 155 mm
• Net Weight: 5.5 kg

Thiele-Small Parameters:

• Resonance Frequency (Fs): 37.8 Hz
• DC Resistance (Re): 5.7Ω
• Mechanical Q Factor (Qms): 5.3
• Electrical Q Factor (Qes): 0.16
• Total Quality Factor (Qts): 0.16
• Equivalent Volume (Vas): 98.7 L
• Moving Mass (Mms): 0.072 kg
• Mechanical Complience (Cms): 0.25 mm / N
• BL Factor (BL): 24.2 Tesla m
• Effective Piston Area (Sd): 0.0531 m²
• Max. linear Excursion (Xmax): +/- 4.5 mm
• Voice Coil Inductance (Le1k): 0.62 mH
• Voice Coil Inductance (Le10k): 0.51 mH

Key Features BMS 12N820:

• 98 dB Sensitivity 1 W / 1 m
• 800 W Power Handling
• Extremely light Weight of 5.5 kg
• 4″ Copper Sandwich Voice Coil for low Power Compression
• Double treated Cone for Water Protection
• Neodymium Magnet System
• Triple Aluminum demodulating Rings for ultra low Distortion
• Optimal for compact 2- or 3-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