Beyma 12CMV3

Beyma 12CMV3 320W 8 Ohm 12" Woofer

    Key Features

    High power handling: 640 W program power
    2.5" CCAW wire voice coil
    High sensitivity: 96.5 dB (1W / 1m)
    Very linear extended response and low distortion
    Treated double roll cloth surround
    Weatherproof membrane
    Optimized pressed steel frame
    Ferrite magnet
    Designed for bass and midbass applications in small vented cabinets

Technical Specifications

    Nominal diameter 300 mm 12 in
    Rated impedance 8 Ω
    Minimum impedance 7.5 Ω
    Power capacity* 320 WAES
    Program power 640 W
    Sensitivity 96.5 dB 1W / 1m @ ZN
    Frequency range 50 - 6.000 Hz
    Recom. enclosure Vb = 55 l
    (Bass-reflex design) Fb = 62.5 Hz
    Voice coil diameter 63.5 mm 2.5 in
    Bl factor 12.3 N/A
    Moving mass 0.044 kg
    Voice coil length 17 mm
    Air gap height 7 mm
    Xdamage (peak to peak) 29 mm

Thiele-Small Parameters

    Resonant frequency, fs 52 Hz
    D.C. Voice coil resistance, Re 6.1 Ω
    Mechanical Quality Factor, Qms 10.6
    Electrical Quality Factor, Qes 0.58
    Total Quality Factor, Qts 0.55
    Equivalent Air Volume to Cms, Vas 85 l
    Mechanical Compliance, Cms 214 μm / N
    Mechanical Resistance, Rms 1.3 kg / s
    Efficiency, η0 2 %
    Effective Surface Area, Sd 0.053 m2
    Maximum Displacement, Xmax *** 7 mm
    Displacement Volume, Vd 371 cm3
    Voice Coil Inductance, Le @ 1 kHz 0.89 mH

Constructive Details

    Overall diameter 310 mm 12.2 in
    Bolt circle diameter 292 mm 11.5 in
    Baffle cutout diameter: - Front mount 280 mm 11.0 in
    Depth 130 mm 5.1 in
    Net weight 4.6 kg 10.1 lb
    Shipping weight 5.3 kg 11.7 lb

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