B&C 15CXN88 – Improve Your 15″ Coaxial Build with 1000W Neodymium Performance
When your build demands more power, more excursion, and more output than a standard 3-inch coil coaxial can deliver, the B&C 15CXN88 is the upgrade you’ve been looking for. This 15-inch neodymium coaxial takes B&C’s proven CXN platform and steps it up with a larger 88 mm (3.5-inch) voice coil, a beefier magnet assembly, and a double spider suspension system.
That pushes continuous power handling to a full 1000 W on the LF section. If you’ve built with the 15CXN76 before, the B&C 15CXN88 gives you noticeably more headroom, tighter cone control, and greater linear excursion, all from the same 393 mm frame size.
With 100 dB sensitivity, 80-degree dispersion, and a frequency range from 45 Hz to 18 kHz, the B&C 15CXN88 delivers the kind of full-range output that lets you build a genuinely high-power two-way cabinet from a single coaxial point source. Whether you’re designing a punchy PA top that needs to keep up at festival volumes or a stage monitor that won’t compress under sustained load, this driver gives you the thermal and mechanical reserves to push harder without breaking a sweat.
Design and Construction of the B&C 15CXN88
The biggest difference you’ll notice about the B&C 15CXN88 is its 88 mm (3.5-inch) aluminium voice coil — a meaningful step up from the 76 mm coil found in the CXN76 series. That extra diameter increases the coil’s surface area, which directly improves thermal dissipation.
In practical terms, your driver stays cooler under sustained high-power use, which means less power compression and more consistent output throughout a long set or event. The aluminium winding keeps the moving mass manageable despite the larger coil, so transient response stays fast and punchy.
The suspension system is equally upgraded. A double spider design with optimised compliance gives the cone tighter mechanical control throughout its stroke, which is critical when you’re pushing the driver hard. Combined with a 9.5 mm Xvar — significantly more linear excursion than the 6 mm offered by the CXN76 — the 15CXN88 moves more air while keeping distortion low. For your build, that translates to deeper, cleaner bass output without the driver running out of travel at high volume.
The glass fibre former provides a rigid, thermally stable foundation for the voice coil, and the waterproof-treated paper cone protects against moisture for outdoor and humid-venue use. An aluminium demodulating ring in the motor structure suppresses modulation distortion, keeping your midrange clean and detailed even under heavy load — something you’ll really appreciate in a coaxial where the woofer is covering everything up to the crossover point.
The high-frequency section features a 75 mm (3-inch) aluminium voice coil driving a titanium diaphragm, delivering 106 dB sensitivity with crisp, articulate highs. The neodymium motor pushes 1.75 T flux density at the HF gap, ensuring the compression driver has the magnetic force to project clearly across your listening area.
The triple roll surround on the LF section is another design detail worth noting — it provides greater excursion capability and more uniform compliance compared to standard surrounds, contributing to the driver’s impressive linear stroke.
All of this runs on a single neodymium ring magnet assembly that powers both the LF and HF sections. Despite the larger coil and increased magnet mass, the B&C 15CXN88 still weighs just 7.65 kg — remarkably light for a 1000 W coaxial. The increased magnet mass over the CXN76 is what drives the improved sensitivity, higher Bl factor, and better cone control, so the extra weight is doing real work for your build’s performance.
Performance and Applications for the B&C 15CXN88
The B&C 15CXN88 handles 1000 W continuous on the LF section and 160 W on the HF, giving you serious headroom for high-output applications. The 4% reference efficiency means you’re getting maximum SPL from every watt your amplifier delivers — pair it with a decent 500–1000 W amp and you’ll have a cabinet that’s genuinely loud without needing to overdrive anything.
The Thiele–Small parameters reveal a driver that’s purpose-built for compact vented enclosures. With a Qts of 0.30 and an EBP of 152 Hz, the 15CXN88 is firmly optimised for bass-reflex designs. The 124-litre Vas is notably smaller than the CXN76’s 246 litres, which means your enclosure can be more compact while still achieving proper low-end alignment.
That’s a significant advantage if you’re building cabinets where space and portability matter. The 20.15 Tm Bl factor confirms the motor’s authority over the cone — you’ll get tight, controlled bass that doesn’t get loose or muddy even when you’re pushing hard.
Builders commonly choose the B&C 15CXN88 for:
- High-power two-way PA tops and compact full-range cabinets
- Heavy-duty coaxial stage monitors for loud stage environments
- Festival and touring rigs that need sustained high-SPL reliability
- Compact bass-reflex enclosures where cabinet size is a constraint
- Club and venue installs requiring high output from a single point source
B&C also offers the FBCXN88 passive crossover network, specifically designed and matched for this driver. If you want a straightforward passive build without custom filter design or DSP processing, the FBCXN88 gives you a plug-and-play crossover solution that takes the guesswork out of your two-way system.
As with all coaxial designs, both the woofer and compression driver share the same acoustic centre, so your build delivers true point-source output with coherent phase alignment at every listening position. No comb-filtering, no off-axis lobing — just consistent, predictable sound that makes your cabinet sound the way you designed it to.
Specifications – LF Section
- Nominal Diameter: 380 mm (15 in)
- Voice Coil Diameter: 88 mm (3.5 in)
- Continuous Power Handling: 1000 W
- Nominal Power Handling: 500 W
- Nominal Impedance: 8 Ω
- Minimum Impedance: 5.8 Ω
- Frequency Range: 45 Hz – 18,000 Hz
- Sensitivity: 100 dB
- Winding Material: Aluminium
- Former Material: Glass Fibre
- Winding Depth: 22 mm (0.87 in)
- Magnetic Gap Depth: 11 mm (0.43 in)
- Flux Density: 1.2 T
- Surround Shape: Triple Roll
- Cone Treatment: WP Waterproof Front Side
Specifications – HF Section
- Voice Coil Diameter: 75 mm (3 in)
- Continuous Power Handling: 160 W
- Nominal Power Handling: 80 W
- Nominal Impedance: 8 Ω
- Minimum Impedance: 8.5 Ω
- Recommended Crossover: 1.2 kHz
- Sensitivity: 106 dB
- Winding Material: Aluminium
- Inductance: 0.14 mH
- Flux Density: 1.75 T
- Diaphragm Material: Titanium
- Magnet Material: Neodymium Ring
Conclusion
The B&C 15CXN88 is the driver to choose when you need more from your 15-inch coaxial build — more power, more excursion, and more output without a dramatically larger or heavier cabinet. The 88 mm voice coil and double spider suspension give you 1000 W continuous handling and 9.5 mm of linear excursion, so your build can play louder and deeper with less distortion than smaller-coil alternatives.
The titanium HF compression driver delivers crisp, projecting highs at 106 dB sensitivity, and the aluminium demodulating ring keeps the midrange clean under heavy load. With a compact 124-litre Vas that suits smaller enclosures and the matched FBCXN88 passive crossover available for straightforward builds, the B&C 15CXN88 is a serious step up for any builder who’s ready to push their coaxial designs further.
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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.
