CD Cardioid SubBass
SOLVING THE SIDE LOBE
While curved vertical arrays are the most advanced loudspeaker systems available, most vertical array systems create side lobes which cause excessive on-stage low frequency levels. Unfortunately, this LF energy can’t be equalized out of the lead singer’s microphone, unless that singer and mic are stationary.
To solve this problem, NEXO's powerful CD12 and CD18 (seen at right) employ an innovative method to control long wavelength, LF acoustic energy. CD technology applies cardioid microphone designs “in reverse”, to produce cardioid, super-cardioid or hyper-cardioid patterns from two woofers facing opposite directions.
Sophisticated signal processing algorithms, from the NX242 TDcontroller, are also applied individually to each of the dual-ported woofers, to produce substantial forward gain and more than 15dB of rear attenuation. This means NEXO CD SubBass systems directs LF energy where it is needed, towards in the audience, and away from open microphones and reverberant surfaces.
GEO S8 & CD12 INSTALLATIONS & APPLICATIONS
GEO T & CD18 INSTALLATIONS & APPLICATIONS
COMPACT DIRECTIONAL VLF
Until now, directional control of very low frequencies could only be accomplished with enormous waveguides or multi-enclosure arrays. But NEXO R&D has harnessed the acoustical principles underlying the cardioid microphone to produce hypercardoid subbass from a very small enclosure. The CD12 relies on the advanced DSP algorithms of the NX242 Digital TDcontroller to provide both vertical and horizontal pattern control, with -12dB attenuation at the rear.
Although the two 12" long excursion neodymium drivers fire in opposite directions, substantial forward gain is also realized. These characteristics make the CD12 a fitting partner to the full range S805 and S830 Tangent Array Modules. Quiet stages and greatly reduced reverberation of subbass frequencies are among the benefits of the innovative technology contained in the CD12.
DSP-DRIVEN CARDIOID VLF
NEXO R&D has used the advanced DSP power of the digital NX242 TDcontroller to develop an extremely compact and highly efficient method for controlling the dispersion of very large acoustical waves.
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