Fountek FW146 5-1/4″ Aluminum Midwoofer Speaker 4Ohm
Overview:
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.
Product Highlights:
- 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 Description:
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 Specification:
| Nominal Diameter | 6-1/2″ | 
| Power Handling (RMS) | 40 Watts | 
| Power Handling (MAX) | 80 Watts | 
| Impedance | 4Ω | 
| Sensitivity | 1″ | 
| Frequency Response | 45 to 5,000Hz | 
| Voice Coil Diameter | 1.02″ | 
Thiele Small Parameters:
| Resonant Frequency (Fs) | 50 Hz | 
| DC Resistance (Re) | 6 ohms | 
| Surface Area Of Cone (Sd) | 77.61 cm² | 
| 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) | 6.07Tm | 
| Diaphragm Mass Inc. Airload (Mms) | 8.94g | 
| Maximum Linear Excursion (Xmax) | 3.6mm | 
Materials of Construction:
| Cone Material | Aluminum | 
| Surround Materia | Rubber | 
| Voice Coil Wire Material | Copper | 
| Voice Coil Former | Aluminum | 
| Magnet Material | Ferrite | 
| Basket / Frame Material | Cast Aluminum | 
Mounting Information:
| Overall Outside Diameter | 5.73″ | 
| Baffle Cutout Diameter | 4.53″ | 
| Depth | 2.7″ | 
| Mounting Holes | 4 | 
| Bolt Circle Diameter | 5.35″ | 







 
				


 
				
 
				
 
				
 
				
 
				
 
				
 
				 
				
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