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Speaker Driver Midwoofer Aluminium 75W 8 Ohm 87dB 50Hz - 3kHz Ø20.3cm
The Fountek FW222 is a Ø20.3 "cm (8") midwoofer driver incorporating an anodised aluminium cone with an inverted dome and integral grille. The bowl is fully open under the spider for minimal compression at high output levels. Featuring a large maximum linear excursion, this driver supports high power handling and provides low distortion and good transient response.
Specifications | |
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Speaker driver type | Midwoofer |
Nominal diameter | Ø30.5cm (12") |
Power handling | RMS : 75W Max : 150W |
Impedance | 8Ω |
Frequency response | 50Hz - 3kHz |
Senstivity | 87dB 1W/1m |
Voice coil diameter | Ø50mm |
Voice coil height | 20mm |
Thiele-Small Parameters | |
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Resonant frequency (Fs) | 34.6Hz |
DC Resistance (Re) | 6.8Ω |
Mechanical quality coefficient (Qms) | 2.61 |
Electromagnetic quality coefficient (Qes) | 0.609 |
Total quality coefficient (Qts) | 0.493 |
Compliance equivalent volume (Vas) | 47.7L |
Mechanical compliance of suspension (Cms) | 0.7mm/N |
Force factor (BL) | 8.7Tm |
Diaphragm mass inc. airload (Mms) | 30.246g |
Diaphragm + Voice coil mass (Mmd) | 28.382g |
Max linear excursion (Xmax) | ±7mmmm |
Surface area of cone (Sd) | 219cm² |
Magnetic flux density (B) | 1.0T |
Material | |
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Cone | Aluminum |
Voice coil wire | Copper |
Voice coil former | Aluminum |
Voice coil layers | 2 |
Magnet | Ferrite |
Mounting informations | |
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Total external diameter | Ø223.5mm |
Depth | 95mm |
Cutout diameter | Ø189mm |
Number of fixation holes | 6 |
Speaker Power (W RMS) | 75.0 |
Speaker Type | Midbass |
Impedance (Ω) | 8 |
Loudspeaker diameter (mm) | 203.0 |
Diaphragm type | Aluminium |
Efficiency / Sensitivity (dB) | 87.0 |
Max Linear Excursion (Xmax) (mm) | 7.0 |
Lowest frequency (Hz) | 50 |
Highest frequency (Hz) | 3000 |