The first column loudspeaker design to come from French company Nexo, the ID84 offers variable directivities and highly flexible scalable configurations for a wide variety of applications.
The ID84 combines a peak SPL output of 135dB and a frequency response of 90Hz-20kHz, and is suited to both speech and music reinforcement, and able to perform as a front-of-house reinforcement system in its own right.
This slender 1m-high package ID84 is accompanied by a low-frequency extension module (ID84L) and a partner subbass (IDS312) that can be configured to provide a scalable solution for acoustically challenging architectures. Potential markets include all kinds of public spaces, particularly transport hubs, houses of worship, theatres and sports venues.
Weighing 15kg (33lbs), the ID84 measures 990mm x 150mm x 215mm (39.0-inch x 5.9-inch x 8.5-inch). For the first time, Nexo engineers have crafted a rigid lightweight enclosure out of aluminium, with a steel spine to host the rigging system and facilitate the hanging of multiple cabinets. Magnelis side covers and front grille complete the sleek contemporary aesthetic, which is available as standard in black or white, with custom RAL colour options to match any installation environment.
In the two-way passive box are eight of Nexo’s powerful 4-inch long-excursion Neodymium LF drivers, and eight 1-inch HF drivers in a unique arrangement which maximises the efficiency of these units. Joseph Carcopino, Nexo Director of R&D, explains that this patent-pending arrangement ‘makes a big difference to the acoustic characteristics of the ID84. For the first time, we are using dome tweeters instead of compression drivers. These have very low distortion, and by using multiple units in this particular shape, we can achieve the desired efficiency as well as a very high quality sound.’
The ID84 offers smooth even coverage that can be tightly controlled by switchable dispersion. The user has a choice of two vertical directivities, selected by a switch on the back plate, offering with +0/-10° Narrow Mode or +0/-25° Wide Mode dispersion for 100° horizontal coverage. Dedicated presets are available for each directivity.
ID84 shares the same phase response as other Nexo loudspeakers, making it easy to partner with different models, for example, for side fill or front fill, without risk of comb filtering or the need for complex electronic adjustment.
The design of the ID84 achieves its versatility by enabling two modules to be coupled ‘head to toe’ to increase throw, with each module keeping its own directivity options. Because the HF arrangement is located at one end of the ID84 column, inverting the second cabinet enables all the HF to be kept in the middle of the 2m line, ensuring perfect coupling.
For long-throw applications requiring longer lines, the ID84L low-frequency extension cabinet can increase the possibilities of the ID84. This extension has almost exactly the same footprint as the ID84, and contains eight 4-inch LF components. By doubling the line length, the vertical directivity of the assembly is increased in the low frequencies, leaving horizontal directivity unchanged. By coupling four units (2x ID84 with 2x ID84L), the HF arrangements can be paired at two mid-points, producing cardioid radiation down to 90Hz. This yields an exceptional level of control of coverage from a 4m speaker assembly.
Nominal impedance for the ID84 is 4Ω. Eight ID84s can be powered by one NXAmp4x1Mk2, which is Nexo’s primary amplifier recommendation, or a single ID84 per channel of any professional amplifier partnered with the Nexo DTDcontroller.
‘Even though we could call this an industrial monitor, it has a very hi-fi sound,’ says Carcopino. ‘If it is used in a FOH application, we can provide set-ups which give a very smooth and easy listening musical character. The ID84 can stand alone on a specially-designed base plate, or on the dedicated sub loaded with three 12-incg drivers, which is high enough to position the HF of the ID84 at the optimum height. The minimal footprint and homogeneity of appearance will give it aesthetic appeal for small stages.’
The IDS312 sub weighs 31kg (68lbs) and measures 1160mm x 380mm x 350mm (45.7-inch x 15.0-inch x 13.8-inch). Frequency response is 40Hz-120Hz and output is 138dB peak. It uses three high-excursion Neodymium drivers in a bass-reflex enclosure design. The crossover between the IDS312 and ID84 has been designed to extend both the frequency response of the main speaker and the directivity by acting like a homogenous 2m-high sound source.
The ID84, ID84L and IDS312 are available in Installation, Touring and TIS versions. Connectivity is made through cable gland and captive two-core cables, and the Installation version is IP54-rated.
More: www.nexo-sa.com
