B&C Speakers Confirms Availability of DCX354 Midrange Coaxial Ring Radiator Compression Driver

Trendy speaker arrays demand nearer supply spacing, larger output, and lighter weight. To satisfy this persevering with problem, Italian producer B&C Audio system launched the brand new DCX354 coaxial ring radiator. A extra compact sibling of the groundbreaking DCX464 launched in 2019, the DCX354 includes 5 years of R&D, two patents, and a radical MF diaphragm design to realize what the corporate describes as its loudest, widest-bandwidth compression driver but.
 

Delivering extra output for demanding long-throw methods in much less area, reaching a beforehand not possible mid-frequency extension, the brand new DCX354 time coherent coaxial ring radiator design from B&C Audio system options a number of patented and patent-pending improvements. The DCX354’s midrange diaphragm covers 400Hz – 6kHz with 112.7 dB sensitivity. The prolonged low-frequency bandwidth,  is the results of a patent-pending diaphragm form which progressively decouples the outer diameter as frequency rises. 

The 76mm (3 inch) midrange voice coil handles 180 watts, whereas the 51mm (2 inch) voice coil excessive frequency diaphragm covers 5 – 20kHz with 111.6 dB sensitivity and handles 100 watts. A redesigned, patented midrange integrator permits each diaphragms to work in concord over a large bandwidth, for higher mixed output and crossover flexibility. All this power arrives at a 1.4″ throat, from probably the most compact package deal that may be designed in the present day.

With a purpose to provide greater than only a smaller model of an current product, B&C Audio system wrote new mathematic modeling methods from scratch – pioneering a technique to guage dozens of potential diaphragm shapes in a day. Subject expertise and buyer testing led to dozens of enhancements and redesigns. Testing in uncommon use instances and with compound loading, led to a extra compact product with practically the identical output and sturdiness as the unique.

 

Reflecting the extraordinary analysis work carried out on the DCX sequence over the last three years, and the expertise gained on the event of the DCX464, B&C Audio system was in a position to develop this new compression coax with smaller dimensions however comparable options. “The DCX354 was the results of a big crew effort. We now have spent many, many hours doing electromagnetic, mechanical and electroacoustical simulation so as to get hold of the utmost efficiency from our loudest, widest-bandwidth compression driver but. The diaphragm geometry is the results of each linear and non-linear simulations, working with a customized instrument combined with analytical fashions and numerical computation, strongly lowering the computational efforts in contrast with a pure FEM simulation,” explains Andrea Casadei, the R&D Engineer chargeable for the DCX coaxial program at B&C Audio system.

“The fabric utilized in each drivers’ ring radiator diaphragms is a high-performance plastic polymer with excessive mechanical energy and thermal resistance. Due to the excessive Younger’s modulus of the fabric, we might design the mid to have a comparatively giant radiating floor, with out mechanical modes throughout the frequency  vary. This helped us to decrease the compression ratio, and the distortion, however nonetheless get a excessive output,” Casadei provides. 

 

“Quite a lot of work was spent on the optimization of the impedance mismatch factor that’s wanted to manage and cut back acoustical resonances and cancellations between the paths. In a tool like a compression coax it is essential to not overload one of many two diaphragms. With a purpose to do that the high-frequency unit ought to begin working at comparatively low frequencies. The acoustical path was then calculated to have an acceptable loading. So our distinctive concept was to incorporate a decoupling machine within the acoustical channel, positioned on the very restrict of the mids section. This mismatch factor reduces the HF diaphragm reaching the mid diaphragm path, ideally working as a inflexible wall from the HF perspective however with out compromising an excessive amount of the mids efficiency.”
 

“We now have additionally labored within the design of a selected waveguide for the DCX sequence. In comparison with our earlier waveguide, the brand new one has a decrease cut-off frequency. The exercise sample is such that the horizontal dispersion is round 120 levels, and really clean on the vertical aircraft. This waveguide has a 1.4-inch throat so it might probably clearly be used with any compression drivers with this dimension.”

The B&C Audio system DCX354 coaxial ring radiator is now obtainable and may be ordered with the prevailing ME464 80×60 diploma point-source horn, loading to 300Hz, and the brand new ME148 line-array waveguide to be used to 500Hz. Additionally obtainable is a devoted FB354 passive crossover.

www.bcspeakers.com