The NXL-100S-RH is the Reduced Height variant of the NXL-100S. It is a high-power 100 V horn loudspeaker with exceptional features. Its high SPL capability, good directivity properties, reliable design and extremely lowprofile mounting make it a perfect fit for cost-effective applications in Voice Evacuation systems implemented in Traffic Tunnels with limited free space.
Features that differ from the NXL-100S are shown below. For further documentation consult the Downloads page.
Tight boundary plane mounting in conjunction with an extremely limited device height ensures a maximum free space in Traffic Tunnel applications.
The BEM-optimized asymmetrical waveguide is based on a novel approach. The waveguide is optimized for tight positioning on a reflective boundary plane while avoiding a neck shaped transition with sharp bends. Flare discontinuities are minimized resulting in a reduction of higher order modes and consequently a better controlled wavefront and improved directivity with negligible off-axis lobing. This design yields low structural losses and good directivity properties; a high and nearly constant Directivity Index for frequencies above ~1.2 kHz, reduced mouth diffraction, less vertical HF interference effects and a smooth off-axis behavior. This allows for a larger distance (> 50 m, depending on acoustical conditions) between devices in a typical delay-aligned set-up. Note that the default product variant (NXL-100S) offers improved directivity properties compared to the reduced height variant (NXL-100S-RH).
Weight and dimensions are significantly smaller compared to the default product variant (NXL-100S).
There is a dedicated 'ABF Compatible Mounting Plates Set' for the NXL-100S-RH, see Accessories section on NXL-100S-RH downloads page.
For further information see the NXL-100S-RH downloads page or contact us directly.