Celestion has announced the introduction of the new TFX0412, a 4-inch ferrite magnet coaxial driver with a rigid pressed steel chassis and 1.25-inch diameter (LF)/1-inch diameter (HF) copper clad aluminum voice coil that’s designed for applications requiring discreet sound reinforcement such as ceiling loudspeakers and cinema audio.
The TFX0412 has combined LF loudspeaker and HF compression drivers that are powered by a common magnet motor assembly, with the same magnet used for both the LF and HF elements. This enables the voice coils and thus the acoustic centers of the two transducers to be brought as close together as possible to improve signal coherence and time alignment for a more natural sounding audio reproduction. It offers a stated combined frequency response of 90 Hz to 20,000 Hz (a crossover is required.)
The single magnet assembly also offers the advantages of lighter weight and a more compact profile compared to more conventional dual motor coaxial designs. The HF diaphragem utilizes polymide film in a design to provide greater high frequency power handling. The company’s next-generation Sound Castle soft clamping assembly decreases operational stress on the diaphragm for further reduced distortion and more reliability.
Both HF and LF voice coils are edge wound using copper clad aluminum to increase voice coil barrel stiffness for more accurate sound reproduction and enable a closer coil wire packing density for improved cooling and increased motor strength. Also included is a demodulation ring that helps minimize the effects of power compression and reduce harmonic and intermodulation distortion.
“The TFX0412 delivers the technology and performance level of our highly successful FTX range in a more lightweight and affordable pressed steel form factor,” says Celestion marketing manager Ken Weller. “This latest addition to an expanding range of high-performance coaxial drivers is a reflection of Celestion’s commitment to providing sound reinforcement equipment designers with new options.”
