B&C 6CXN36 – Improve Your Micro Speaker Build with the Ultimate Compact Coaxial

At 700 grams and just 91 mm deep, the B&C 6CXN36 is unlike anything else in the professional coaxial world. This 6.5-inch neodymium coaxial weighs less than a bottle of water, fits in the palm of your hand, and still delivers genuine full-range two-way performance from 90 Hz to 18 kHz with 90-degree conical coverage.

The B&C 6CXN36 is part of B&C’s compact transducer lineup — a range of high-technology small-format drivers built with the same quality control as their full-sized professional models. If the 6HCX51 is impressively small, the B&C 6CXN36 takes compactness to an entirely different level with less than half the weight and a shallower depth.

For builders designing micro satellite speakers, ultra-slim column arrays, tiny ceiling speakers, portable Bluetooth-style enclosures, or any project where absolute minimum size and weight are the primary design goals, the B&C 6CXN36 is the most compact professional coaxial you can build with.

Design and Construction of the B&C 6CXN36

The low-frequency section of the B&C 6CXN36 uses a 34 mm (1.3-inch) copper voice coil on a glass fibre former. This is a notably smaller coil than the 6HCX51’s 51 mm, which is a key reason for the dramatic weight reduction. The glass fibre former provides the rigidity and thermal stability needed for reliable operation despite the miniature scale.

The moving mass is an astonishing 10.2 g — the absolute lightest in B&C’s entire product range by a significant margin. To put that in perspective, it’s lighter than two standard coins. That ultra-low mass gives the B&C 6CXN36 transient speed that borders on instantaneous. Every detail in the signal reaches the listener with zero perceivable lag.

For speech reinforcement, acoustic music, and nearfield listening, that transient precision makes the 6CXN36 sound remarkably clear and present. Consonants are crisp, plucked strings are immediate, and fine musical details that larger drivers can smear or soften come through with startling definition.

An aluminium demodulating ring in the motor structure is a notable inclusion at this size and price point. It keeps midrange distortion low, ensuring the driver sounds clean and detailed rather than harsh or muddy — a feature that separates the B&C 6CXN36 from generic small-format drivers that cut corners on motor refinement.

The waterproof-treated cone provides moisture protection for outdoor and humid-environment builds. The 5 mm linear excursion is generous for a driver this small, giving you usable bass output down to the 90 Hz frequency range limit.

The high-frequency section uses a 36 mm (1.4-inch) aluminium voice coil driving an HT Polymer dome diaphragm at 100 dB sensitivity with 1.65 T flux density. HT Polymer is inherently well-damped, producing smooth, controlled highs that are easy to listen to over long periods. One important detail: the HF section runs at 16 Ω while the LF runs at 8 Ω, so your crossover design needs to account for the impedance mismatch between sections.

Performance and Applications for the B&C 6CXN36

The B&C 6CXN36 handles 200 W continuous on the LF section and 50 W on the HF. These are modest numbers compared to larger coaxials, but they’re well-matched to the compact applications this driver is designed for. Pair it with a small 50–150 W amplifier and you’ll have a speaker that’s surprisingly capable for its size.

The Thiele–Small parameters are unique in B&C’s coaxial range. A Qts of 0.95 and EBP of 77 Hz make this driver ideally suited for sealed enclosures — a characteristic that sets it apart from the rest of the lineup which tends toward vented designs. A small sealed box will give you tight, controlled bass with a smooth rolloff that works beautifully for nearfield and background music applications.

The 7.5-litre Vas means your enclosure can be genuinely miniature. A well-designed sealed cabinet of 3–5 litres is entirely practical, making the B&C 6CXN36 viable for builds where even the 6HCX51’s 5-litre Vas felt like too much volume to work with.

The 90-degree conical coverage pattern provides wide, even dispersion that fills a room naturally from a single tiny source. That coverage angle is wider than the 6HCX51’s 70 degrees, making the 6CXN36 a better choice for applications where broad fill matters more than focused throw.

Builders commonly choose the B&C 6CXN36 for:

• Micro satellite speakers where absolute minimum weight is critical
• Ultra-slim column arrays and line source builds
• Ceiling and wall-mount speakers for distributed sound systems
• Compact desktop monitors and nearfield reference speakers
• Portable and battery-powered speaker builds
• Surround sound channels and immersive audio installations

B&C offers the FBCXN36 passive crossover network, purpose-matched to this driver and designed to handle the 8 Ω LF / 16 Ω HF impedance configuration. If you want a straightforward passive build without custom filter calculations, the FBCXN36 takes the guesswork out of the crossover entirely.

Specifications – LF Section

• Nominal Diameter: 165 mm (6.5 in)
• Voice Coil Diameter: 34 mm (1.3 in)
• Continuous Power Handling: 200 W
• Nominal Power Handling: 100 W
• Nominal Impedance: 8 Ω
• Minimum Impedance: 6.8 Ω
• Frequency Range: 90 Hz – 18,000 Hz
• Sensitivity: 90 dB
• Winding Material: Copper
• Former Material: Glass Fibre
• Winding Depth: 11 mm (0.43 in)
• Magnetic Gap Depth: 6 mm (0.24 in)
• Flux Density: 0.74 T
• Cone Treatment: WP Waterproof Front Side

Specifications – HF Section

• Voice Coil Diameter: 36 mm (1.4 in)
• Continuous Power Handling: 50 W
• Nominal Power Handling: 25 W
• Nominal Impedance: 16 Ω
• Minimum Impedance: 10.2 Ω
• Recommended Crossover: 2 kHz
• Sensitivity: 100 dB
• Winding Material: Aluminium
• Inductance: 0.14 mH
• Flux Density: 1.65 T
• Diaphragm Material: HT Polymer
• Magnet Material: Neodymium Ring

Conclusion

The B&C 6CXN36 is the most compact and cost-effective full-range coaxial transducer B&C has ever built. At 700 grams, 91 mm deep, and 180 mm across, it sets a new standard for how small a professional coaxial driver can be while still delivering real two-way performance.

With a 10.2 g moving mass for extraordinary transient speed, an aluminium demod ring for clean midrange, wide 90-degree coverage, and a sealed-enclosure-friendly Qts of 0.95, the B&C 6CXN36 is the ultimate building block for micro speakers, column arrays, and installed sound systems where the driver needs to be heard and not seen. The matched FBCXN36 crossover handles the 8/16 Ω impedance split for effortless passive builds. If your project demands the absolute smallest professional coaxial available, this is it.