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The FDB CX1544 is a 15-inch coaxial loudspeaker driver designed for professional two-way loudspeaker cabinet development. It combines a 381 mm low-frequency cone and a 44.4 mm high-frequency diaphragm within a single chassis, providing loudspeaker designers and system manufacturers with an integrated LF/HF component for compact enclosure projects.
The CX1544 has an 8-ohm rated impedance, a power capacity of 350 W and a peak power capacity of 1400 W. Its low-frequency section operates from 40 Hz to 2500 Hz, while the high-frequency section covers 1500 Hz to 18,000 Hz. The overlapping operating ranges allow system designers to develop an appropriate crossover according to the intended cabinet, coverage requirement and application.
With LF sensitivity of 98 dB and HF sensitivity of 107 dB, the CX1544 is suitable for professional audio projects where efficient acoustic output and compact driver integration are important.
The low-frequency and high-frequency sections are combined in one driver assembly. This shared-axis configuration supports compact two-way loudspeaker designs and reduces the space required for separately mounted LF and HF components.
The CX1544 provides separate frequency-range and sensitivity data for its LF and HF sections. This gives system engineers a clear technical basis for crossover development and system tuning.
With a specified power capacity of 350 W and peak power capacity of 1400 W, the CX1544 can be considered for professional sound reinforcement cabinet projects when used with suitable crossover, amplification and protection settings.
The specified sensitivity is 98 dB for the LF section and 107 dB for the HF section, supporting efficient output from an appropriately designed loudspeaker system.
The driver has a 390 mm overall diameter, a 356 mm baffle cutout diameter and a mounting depth of 215 mm. These dimensions provide clear reference data for cabinet and baffle design.
Parameter | CX1544 Specification |
Product type | Coaxial loudspeaker driver |
LF nominal diameter | 381 mm / 15 in |
HF diaphragm diameter | 44.4 mm / 1.7 in |
Rated impedance | 8 ohms |
Power capacity | 350 W |
Peak power capacity | 1400 W |
LF sensitivity | 98 dB |
HF sensitivity | 107 dB |
LF frequency range | 40 Hz-2500 Hz |
HF frequency range | 1500 Hz-18,000 Hz |
LF minimum impedance | 6 ohms |
HF minimum impedance | 7.8 ohms |
LF voice-coil diameter | 75 mm / 3 in |
HF voice-coil diameter | 44.4 mm / 1.7 in |
LF voice-coil material | Copper |
HF voice-coil material | CCAR |
Cone material | Half-pressed pulp |
Diaphragm material | Mylar |
Overall diameter | 390 mm |
Bolt-circle diameter | 370 mm |
Baffle cutout diameter | 356 mm |
Mounting depth | 215 mm |
Net weight | 7 kg |
Shipping weight | 7.5 kg |
Shipping carton dimensions | 410 × 410 × 240 mm |
The CX1544 may be evaluated for use in professional two-way loudspeaker projects such as:
● Portable PA speaker enclosures
● Coaxial stage-monitor designs
● Fixed-installation loudspeaker cabinets
● Custom sound reinforcement systems
● OEM and ODM loudspeaker projects
● Replacement or system-upgrade projects with compatible dimensions and electrical specifications
Final application suitability depends on the enclosure design, crossover configuration, amplifier selection, protection settings and required acoustic performance.
The CX1544 is a loudspeaker component rather than a complete, ready-to-use speaker system. It requires a properly engineered enclosure and suitable LF/HF crossover or DSP configuration.
Cabinet volume, port tuning, crossover frequency, crossover slope, equalization, limiting and amplifier power should be determined according to the complete system design. The finished loudspeaker should be measured and verified before being placed into professional service.
When the CX1544 is being considered as a replacement driver, system designers should compare the following parameters with the original component:
● Baffle cutout and mounting dimensions
● LF and HF impedance
● Power capacity
● Sensitivity
● Operating frequency ranges
● Crossover requirements
● Cabinet volume and tuning
● Amplifier and protection settings
Matching only the nominal diameter is not sufficient to guarantee compatibility.
FDB Audio provides OEM and ODM services for professional audio projects. Customers with requirements for customized components, loudspeaker cabinet development, system matching, branding or volume production can contact FDB Audio to confirm the available customization scope.
Please provide the intended application, target performance, order quantity and technical requirements when submitting an inquiry. Available options, minimum order quantities, production lead times and technical support should be confirmed directly with the manufacturer.
The CX1544 is a 15-inch coaxial loudspeaker driver. It integrates low-frequency and high-frequency sections into one chassis and is designed for installation in a properly engineered loudspeaker enclosure.
The CX1544 has a specified power capacity of 350 W and a peak power capacity of 1400 W. Amplifier and limiter settings should be selected according to the complete loudspeaker system design.
Yes. The CX1544 contains separate LF and HF sections, so a suitable passive crossover or DSP configuration is required. The crossover frequency, filter slope and protection settings should be determined through system design and acoustic testing.
It may be used as a replacement driver only when its mounting dimensions, impedance, power capacity, frequency response and crossover requirements are compatible with the existing loudspeaker system.
FDB Audio provides OEM and ODM services for professional audio projects. Available customization options, minimum order quantities, lead times and technical requirements should be confirmed directly with FDB Audio.
