 |
| Quantity: | |
|---|---|
CX1275N
fdB
The CX1275N is a 12-inch neodymium coaxial driver developed for professional two-way loudspeaker systems. Its coaxial configuration integrates the low-frequency and high-frequency sections into one compact transducer, making it suitable for loudspeaker designs where space-efficient installation and aligned LF/HF output are important.
The low-frequency section features a 300 W power capacity, 98 dB sensitivity, a 3-inch copper voice coil, and a frequency range of 40 Hz to 4 kHz. The high-frequency section uses a 3-inch copper-clad aluminum voice coil, a neodymium magnet, and a polyester-and-titanium diaphragm, with a specified frequency range of 500 Hz to 20 kHz.
The coaxial structure places the high-frequency section at the center of the low-frequency driver. This configuration supports compact two-way loudspeaker designs and reduces the physical spacing between the LF and HF acoustic sources.
Both the low-frequency and high-frequency sections use 3-inch voice coils. The LF section is equipped with a copper voice coil, while the HF section uses a copper-clad aluminum voice coil to keep the high-frequency moving assembly relatively lightweight.
The CX1275N provides a specified LF sensitivity of 98 dB and HF sensitivity of 108 dB at 1 W/1 m. These sensitivity ratings make the driver suitable for professional loudspeaker systems requiring efficient acoustic output from the available amplifier power.
A cast-aluminum basket provides a rigid mounting structure for the transducer while helping control overall component weight. The basket design is suitable for secure integration into professionally designed loudspeaker enclosures.
The high-frequency section uses a neodymium magnet with a specified flux density of 1.9 T. Neodymium magnetic structures allow strong magnetic performance within a comparatively compact motor assembly.
The supplied Thiele-Small parameters provide enclosure designers with the data needed to evaluate cabinet volume, tuning frequency, low-frequency response, damping, and excursion limits during loudspeaker system development.
Parameter | Specification |
Nominal diameter | 12 inches |
Nominal impedance | 8 Ω |
Power capacity | 300 W |
Sensitivity | 98 dB, 1 W/1 m |
Frequency range | 40 Hz–4,000 Hz |
Voice coil diameter | 3 inches / 75 mm |
Voice coil material | Copper |
Voice coil winding depth | 16.1 mm |
Magnetic gap depth | 10 mm |
Basket material | Cast aluminum |
Effective diaphragm diameter | 260 mm |
Parameter | Specification |
Nominal impedance | 8 Ω |
Power capacity | 110 W |
Peak power | 220 W |
Sensitivity | 108 dB, 1 W/1 m |
Frequency range | 500 Hz–20,000 Hz |
Recommended crossover frequency | ≥1,200 Hz |
Voice coil diameter | 3 inches / 75 mm |
Magnet material | Neodymium |
Flux density | 1.9 T |
Voice coil material | Copper-clad aluminum |
Voice coil former | Kapton |
Diaphragm material | Polyester + titanium |
Parameter | Value |
Fs | 48 Hz |
Re | 5.6 Ω |
Qms | 8.17 |
Qes | 0.27 |
Qts | 0.26 |
Vas | 89 L |
Mms | 47.6 g |
Cms | 0.23 mm/N |
BL | 17.5 T·m |
Sd | 0.053 m² |
Xmax | ±3.05 mm |
These parameters should be used together with enclosure simulation, crossover design, amplifier limiting, and system-level testing when developing a finished loudspeaker system.
Parameter | Specification |
Overall diameter | 315 mm |
Baffle cut-out diameter | 286 mm |
Bolt circle diameter | 300 mm |
Mounting holes | 8 × 7–8 mm |
Overall depth | 171 mm |
Net weight | 5.5 kg |
Before production, enclosure designers should verify the physical drawing and allow sufficient clearance for the basket, terminals, magnetic assembly, cabinet bracing, and wiring.
The CX1275N can be considered for professionally engineered two-way coaxial loudspeaker projects, including:
● Coaxial stage-monitor enclosure designs
● Compact professional PA cabinets
● Custom two-way loudspeaker systems
● Fixed-installation speaker enclosure projects
Final suitability depends on the enclosure volume, cabinet tuning, crossover network, processing, amplifier power, and protection settings used in the completed system. These applications are engineering-use scenarios based on the product type and published specifications, rather than documented CX1275N installation cases.
The CX1275N is a 12-inch neodymium coaxial driver designed for professional two-way loudspeaker systems. It integrates the low-frequency and high-frequency sections into a single transducer assembly.
The low-frequency section has a specified power capacity of 300 W. The high-frequency section is rated at 110 W, with a peak power rating of 220 W.
These ratings apply separately to the LF and HF sections and should not be combined into a single total power figure.
The low-frequency section has a specified frequency range of 40 Hz to 4,000 Hz, while the high-frequency section covers 500 Hz to 20,000 Hz.
The final frequency response will also depend on the enclosure, crossover design, DSP settings, and installation environment.
The recommended crossover frequency for the high-frequency section is 1,200 Hz or higher.
The final crossover frequency and filter slope should be selected according to the enclosure design, required output level, amplifier configuration, and system protection settings.
The CX1275N can be considered for professionally designed coaxial stage monitors, compact PA cabinets, custom two-way loudspeaker systems, and fixed-installation speaker projects.
Final suitability depends on the enclosure design, crossover network, DSP processing, amplifier power, dispersion requirements, and protection settings.
