Celestion introduces TFX0412 coaxial and PowerProX18 subwoofer at NAMM 2023

AT NAMM 2023, Celestion introduced the TFX0412 4-inch single ferrite magnet coaxial driver as well as the PowerProX18 subwoofer.


With a pressed steel chassis, 1.25” diameter (LF) / 1’ diameter (HF) copper clad aluminum voice coil, the TFX0412 is said to provide a very cost-effective addition to the company’s series of coaxial units, for applications requiring compact, discreet sound reinforcement such as ceiling speakers and cinema audio.

The TFX0412 features a common magnet motor assembly, with the same magnet used for both the LF and HF elements. The TFX0412 offers a combined frequency response of 90 Hz to 20,000 Hz (a crossover is required).

The unit features a polyimide film HF diaphragm, reportedly enabling it to provide greater high frequency power handling. Celestion’s Sound Castle soft clamping assembly decreases operational stress on the diaphragm, for further reduced distortion and greater reliability of performance, says Celestion.

Both HF and LF voice coils are edge wound using copper clad aluminium. Also included is a demodulation ring that reduces power compression and the 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” commented 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”.



PowerProX18
The 18-inch PowerProX18 subwoofer targets applications that include cinema sound, fixed install and touring sound reinforcement. The subwoofer reportedly features an advanced cooling design that enables its voice coil to run 20°C cooler than comparable competitor drivers, reducing heat-related stress on the 4-inch glass-fibre voice coil former and other thermally sensitive parts.

In the interest of performance longevity, especially in outdoor applications such as concerts, the glass fibre-loaded cellulose cone is weatherproofed on both the front as well as the back side.

With a nominal impedance of 8 ohms, the PowerProX18 subwoofer’s nominal power rating is a 1200 AES watts (2400 continuous). Sensitivity at 1W@1m in 2π space is 97dB. Its Bl (motor force) curve is said to exhibit remarkable symmetry, and thanks to the cone’s polysiloxane-laminated dual suspension, which provides greater stability and improves cone displacement symmetry, the K (stiffness) curve again reveals improved symmetry resulting in reduced distortion.

An aluminium demodulation ring reduces the inductance (Le) of the motor circuit — only 1.61mH at 1kHz. The ring also reduces harmonic distortion.

The subwoofer has a usable frequency range of 35 to 1000Hz. Xmax is calculated at ±9.3mm. Its chassis supports a 3.5kg ferrite magnet, while the overall weight of the subwoofer is 13.2kg (29.1lb.)

“The PowerProX18 a subwoofer designed for longevity of high performance, delivering maximum durability and reliability throughout the lifespan of each speaker,” says Ken Weller, Marketing Manager at Celestion. “It is intended to surpass the performance of other 18-inch subwoofer drivers in its class, making it ideal for challenging sound reinforcement and cinema sound applications.”