B&C 10NW64 – Premium 10-Inch Neodymium Woofer with Strongest Motor and Copper Cap
The B&C 10NW64 is the highest-motor-authority 10-inch woofer in B&C’s lightweight neodymium range. With an 18.3 Tm force factor — the strongest of any 2.5-inch coil 10-inch driver B&C makes — a 64 mm copper voice coil for maximum thermal performance, a shorting copper cap for smooth extended high-frequency response, and a ventilated gap for reduced power compression, the B&C 10NW64 carries the full NW-series feature set that positions it as the premium option in the neo 10-inch lineup.
The NW designation carries the same meaning at 10 inches as it does at 15 and 18 — this is the variant with the strongest motor, the best thermal management, and the most refined output quality. The B&C 10NW64 handles 300 W AES — more than any other 2.5-inch coil 10-inch woofer in the range — and the copper coil’s superior thermal conductivity means that power rating holds up during sustained use better than CCAW or aluminium alternatives.
With a Qts of 0.26, an EBP of 219 Hz, TWP waterproof treatment on both sides, and 96 dB sensitivity across a 60 Hz – 2500 Hz bandwidth, the B&C 10NW64 is built for vented and horn-loaded enclosures where motor control, thermal reliability, and clean crossover behaviour are the priorities. B&C recommends a 26-litre vented enclosure tuned to 59 Hz. At 2.95 kg, it remains firmly in the lightweight neodymium class.
Design and Construction of the B&C 10NW64
The B&C 10NW64 uses a 64 mm (2.5-inch) copper voice coil wound on a glass fibre former. The copper winding is a deliberate choice over the CCAW used in the NDL64 and the aluminium used in the CLA64 — copper is the densest and most thermally conductive winding material available, providing the best heat dissipation under sustained load. The heavier copper coil increases the moving mass to 47 g (vs the NDL64’s 37 g), but the trade-off is more consistent performance over extended operating periods and the highest power handling in the 2.5-inch coil 10-inch range at 300 W AES.
The 16 mm winding depth operating in an 8 mm magnetic gap yields 6 mm of linear one-way excursion (Xmax) — matching the NDL64’s range-leading figure — with 5.5 mm of additional travel (Xvar) before mechanical limits. The motor uses a neodymium inside-slug magnet in a straight pole configuration, producing 1.25 T of flux density and a force factor (Bl) of 18.3 Tm — the highest Bl of any 2.5-inch coil 10-inch woofer in B&C’s range. That 18.3 Tm drives the 47 g moving mass with commanding authority, producing tight, fast transient response and the low 0.26 Qts that defines the B&C 10NW64’s controlled bass character.
A shorting copper cap on the pole piece reduces voice coil inductance rise at higher frequencies, flattening the impedance curve and producing smooth, extended high-frequency response through the crossover region. The resulting 0.65 mH Le is the second-lowest of any 10-inch driver in B&C’s range (after the MBX64’s 0.39 mH), making the B&C 10NW64 particularly predictable in passive crossover networks and clean through active crossover transitions.
A ventilated voice coil gap reduces power compression during sustained operation. The exponential cone features TWP waterproof treatment on both sides for full weather resistance. A single spider handles suspension, paired with a double-roll surround. At 2.95 kg, 261 mm overall diameter, and 113 mm depth, the B&C 10NW64 shares the same physical dimensions as the NDL64 — the two are physically interchangeable in existing cabinets.
Performance and Applications for the B&C 10NW64
The B&C 10NW64 delivers 96 dB sensitivity and 1.6% reference efficiency across a 60 Hz – 2500 Hz bandwidth. The 96 dB sensitivity matches the CL-series drivers, while the 2500 Hz upper bandwidth is narrower than the NDL64’s 3000 Hz and the CLA64’s 4000 Hz. The narrower bandwidth is not a limitation — it reflects B&C’s conservative specification of the usable range, and the shorting copper cap ensures the rolloff above 2500 Hz is smooth and predictable rather than ragged. For systems crossing over to a compression driver at 1.5–2 kHz, the B&C 10NW64’s bandwidth is more than sufficient.
The Thiele–Small parameters define the most motor-dominant woofer-class 10-inch driver in B&C’s range after the MBX64 mid-bass specialist. A Qts of 0.26 and an EBP of 219 Hz place the B&C 10NW64 firmly in vented and horn-loaded territory, producing the tightest bass response of any standard woofer-class 10-inch neo driver. B&C recommends a 26-litre (0.92 ft³) vented enclosure tuned to 59 Hz — a compact cabinet that shares the same volume as the NDL64 and CL64 recommendations.
The choice between the B&C 10NW64 and the 10NDL64 comes down to priorities. The NDL64 delivers 1 dB more sensitivity (97 vs 96 dB), wider bandwidth (3000 vs 2500 Hz), and lighter weight (2.9 vs 2.95 kg). The B&C 10NW64 counters with a stronger motor (18.3 vs 16.2 Tm Bl), more power handling (300 vs 250 W AES), a shorting copper cap for smoother crossover behaviour, and the copper coil’s superior thermal stability. If your system demands maximum output per watt, the NDL64 is the better choice. If it demands maximum motor control, sustained power handling, and the cleanest crossover transition, the B&C 10NW64 is the right tool.
Ideal applications for the B&C 10NW64 include:
- Premium two-way tops requiring the cleanest crossover behaviour from the woofer section
- Vented and horn-loaded 10-inch cabinets for touring and live sound
- Systems running sustained high power where thermal consistency matters
- Outdoor installations and touring rigs requiring TWP dual-side weather protection
- Passive crossover designs where the shorting cap’s low inductance simplifies filter behaviour
Specifications – B&C 10NW64
- Nominal Diameter: 250 mm (10 in)
- Nominal Impedance: 8 Ω
- Minimum Impedance: 6.5 Ω
- Nominal Power Handling: 300 W
- Continuous Power Handling: 600 W
- Sensitivity: 96 dB
- Frequency Range: 60 Hz – 2500 Hz
- Voice Coil Diameter: 64 mm (2.5 in)
- Winding Material: Copper
- Former Material: Glass Fibre
- Winding Depth: 16 mm (0.62 in)
- Magnetic Gap Depth: 8 mm (0.31 in)
- Flux Density: 1.25 T
- Magnet Material: Neodymium (inside slug)
- Cone Shape: Exponential
- Cone Treatment: TWP Waterproof (both sides)
- Surround Shape: Double Roll
- Spider: Single
- Pole Design: Straight Pole
- Net Weight: 2.95 kg (6.5 lb)
Thiele–Small Parameters – B&C 10NW64
- Fs: 59 Hz
- Re: 5.2 Ω
- Qes: 0.27
- Qms: 4.3
- Qts: 0.26
- Vas: 22 dm³ (0.78 ft³)
- Sd: 320 cm² (49.6 in²)
- η0: 1.6%
- Xmax: 6 mm
- Xvar: 5.5 mm
- Mms: 47 g
- Bl: 18.3 Tm
- Le: 0.65 mH
- EBP: 219 Hz
Mounting Information – B&C 10NW64
- Overall Diameter: 261 mm (10.28 in)
- Bolt Circle Diameter: 245 mm (9.6 in)
- Baffle Cutout Diameter: 230 mm (9.1 in)
- Depth: 113 mm (4.4 in)
- Flange and Gasket Thickness: 13 mm (0.5 in)
- Air Volume Occupied by Driver: 1.5 dm³ (0.05 ft³)
- Recommended Enclosure Volume: 26 dm³ (0.92 ft³)
- Recommended Tuning Frequency: 59 Hz
Conclusion – B&C 10NW64 Woofer
The B&C 10NW64 is the premium option in B&C’s neo 10-inch woofer range — the driver you choose when motor authority, thermal reliability, and crossover refinement matter more than peak sensitivity or maximum bandwidth. The 18.3 Tm force factor is the strongest of any 2.5-inch coil 10, the copper coil delivers the best sustained thermal performance, and the shorting copper cap produces the smoothest high-frequency rolloff and the cleanest crossover behaviour of any neo 10-inch woofer in the lineup.
The 0.65 mH inductance is the practical result of the copper cap — it keeps the impedance curve flat through the crossover region, making passive crossover design more predictable and active crossover transitions cleaner. For system designers who have fought with inductance-related impedance rise in the crossover band, the B&C 10NW64 solves that problem at the driver level rather than requiring corrective circuitry.
For premium two-way tops, touring speaker systems, horn-loaded applications, and any build where the 10-inch woofer needs to deliver the tightest motor control and most reliable sustained performance available in a lightweight neodymium package, the B&C 10NW64 is the NW-series driver that carries the full weight of the designation. Strongest motor, copper coil, copper cap, ventilated gap, TWP both sides — everything B&C offers in a neo 10-inch woofer, in one driver.
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About B&C Speakers S.r.L.
B&C Speakers products are built in Bagno a Ripoli (Florence), Italy., ensuring high quality products to suite your speaker building requirements. Their 10,500 square meter facility incorporates highly sophisticated automation and quality control. Over the years they become one of the world leaders in the Professional Audio market, a brand recognized everywhere as a premium product that offers excellent value to the consumer.
