B&C 6NDL44 6-1/2" Professional 400 Watts Neodymium Woofer 8-Ohm
B&C's 6NDL44 6-1/2" cast frame neodymium woofer is a lightweight, powerful choice for ultra-compact multi-way speaker systems. Its rubber half-roll edge and treated cone are engineered to handle high bass excursions without drama, while still allowing a clean, articulate sonic signature. The 6NDL44 is also suitable as the midrange element in medium efficiency 3-way applications.
Product Specifications
Nominal Diameter 6-1/2"
Power Handling (RMS) 200 Watts
Power Handling (max) 400 Watts
Impedance 8 ohms
Frequency Response 70 to 6,000 Hz
Sensitivity 91.5 dB 1W/1m
Voice Coil Diameter 1.7"
Thiele-Small Parameters
Resonant Frequency (Fs) 68 Hz
DC Resistance (Re)5 ohms
Voice Coil Inductance (Le) 0.57 mH
Mechanical Q (Qms) 9
Electromagnetic Q (Qes) 0.35
Total Q (Qts) 0.34
Compliance Equivalent Volume (Vas) 0.26 ft.³
BL Product (BL) 10.3 Tm
Diaphragm Mass Inc. Airload (Mms) 17.8g
Maximum Linear Excursion (Xmax) 6 mm
Surface Area of Cone (Sd) 132 cm²
Materials of Construction
Cone Material Paper
Surround Material Rubber
Voice Coil Wire Material Copper
Basket / Frame Material Cast Aluminum
Magnet Material Neodymium
Mounting Information
Overall Outside Diameter 7.4"
Baffle Cutout Diameter 5.7"
Depth 3.2"
Bolt Circle Diameter 6.7"
# Mounting Holes 8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume 0.05 ft.³
Sealed F 3171 Hz
Vented Volume 0.12 ft.³
Vented F 3103 Hz