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Beyma 12CMV3 8 Ohm
- 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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