The new Celestion CDX20-3020 uses a 3” copper clad aluminum voice coil driving a titanium diaphragm, and delivers 75W rms power handling and 107dB sensitivity across a frequency range of 500 to 18,000Hz. Recommended minimum crossover frequency (at 12dB/octave) is 1kHz.
According to Celestion’s head of engineering Paul Cork, “this compression drivers bring together the best elements of technology used in the most successful products of our CDX range. The design extracts the maximum performance from a unit that is surprisingly compact for a 2” exit device.”
Like other CDX compression drivers in the range, the CDX20-3020 makes extensive use of Celestion’s industry-leading experience in Finite Element Analysis (FEA) to optimize magnetic and acoustic design, helping the device to achieve outstanding performance at a highly competitive price point.
This new compression driver also uses Celestion’s next generation of Sound Castle diaphragm clamping assembly to ensure even clamping pressure on the diaphragm surround, while actively reducing stress on the diaphragm during operation. This contributes to lower distortion while enabling the full internal volume of the rear cover to act as a loading chamber for the diaphragm, resulting in superior mid-band response. With exceptional heat management, plus an edge-wound coil copper clad aluminum voice coil the CDX20-3020 is a high performance HF solution for a wide variety of larger format sound reinforcement applications.
Celestion also announced the launch of the CDX1-1070. Developed at Celestion’s headquarters in Ipswich, England, the CDX1-1070 is a 25mm/1-inch exit ferrite magnet compression driver. Driven by a 25mm/1-inch copper clad aluminum voice coil, this device provides 12Wrms power handling and 106dB sensitivity across a frequency range of 1500 to 20kHz.
It features a single piece PETP diaphragm and surround is held in place by a precision aluminum carrier, ensuring consistent reliable performance and facilitating a smooth frequency response. The lightweight, ferrite magnet device is fabricated using a rigid engineering thermoplastic with a standard 2xM6 bolt fitting. Acoustic foam is utilized to minimize internal air cavity resonances, dampening unwanted reflections from the inside of the cover.
The CDX1-1070 magnet assembly and overall acoustic design have been optimized using sophisticated FEA (Finite Element Analysis) modeling techniques, to deliver a much smoother frequency response than many comparable drivers on the market.
Purpose-built for compact two-way systems, CDX1-1070 has been made available at an exceptionally cost-competitive price point, making Celestion compression driver technology even more accessible to reinforcement system builders.