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Fountek FW146 5-1/4" Aluminum Midwoofer Speaker

Brand:|Model: FW146|Part # 296-727

Fountek’s FW146 is a robust 5-1/4" midbass driver that features an attractive aluminum cone (and phase plug), a high-strength cast-aluminum frame, and an optimized motor structure for low distortion and excellent detail.
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Part # 296-727
  • Elegant satin anodized-aluminum cone with phase plug
  • Long-throw voice coil for dynamic bass
  • Linear response up to 5,000 Hz for easy integration with tweeters

Product Details

Fountek FW146 5-1/4" Aluminum Midwoofer Speaker

Fountek midbass drivers offer exceptional value with premium features like aluminum cones and phase plugs, robust cast frames, and optimized low-distortion motors.  They’re the perfect choice for use in high-end loudspeaker systems, paired with premium-quality tweeters like Fountek’s own ribbon units.

The FW146 5-1/4” midwoofer is the perfect choice for compact mini-monitor speaker projects, or as a midrange in a three-way configuration together with a dedicated woofer. The aluminum cone and phase plug feature a discreet, stylish satin anodized finish, and the cast frame adds structural rigidity to the driver.

Product Specifications
  • Nominal Diameter5-1/4"
  • Power Handling (RMS)35 Watts
  • Power Handling (max)70 Watts
  • Impedance8 ohms
  • Frequency Response45 to 4,000 Hz
  • Sensitivity86.1 dB 1W/1m
  • Voice Coil Diameter1.02"
Thiele-Small Parameters
  • Resonant Frequency (Fs)50 Hz
  • DC Resistance (Re)6 ohms
  • Mechanical Q (Qms)3.51
  • Electromagnetic Q (Qes)0.46
  • Total Q (Qts)0.4
  • Compliance Equivalent Volume (Vas)0.35 ft.³
  • Mechanical Compliance of Suspension (Cms)1.14 mm/N
  • BL Product (BL)6.07 Tm
  • Diaphragm Mass Inc. Airload (Mms)8.94g
  • Moving Mass Of Diaphragm (Mmd)8.54
  • Maximum Linear Excursion (Xmax)3.6 mm
  • Surface Area of Cone (Sd)77.61 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter5.73"
  • Baffle Cutout Diameter4.53"
  • Depth2.7"
  • Bolt Circle Diameter5.35"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.12 ft.³
  • Sealed F398 Hz
  • Vented Volume0.29 ft.³
  • Vented F352 Hz
Fountek FW146 5-1/4" Aluminum Midwoofer Speaker
  • BrandFountek
  • ModelFW146
  • Part Number296-727
  • UPC848864004228
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight3 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Fountek FW146 5-1/4" Aluminum Midwoofer Speaker

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