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user manual
QLight™ DP series
QLight DP series manual
page 20
CONVERGING ELLIPTICAL WAVEGUIDES™
A design feature of the TQ-308DP, TQ-310DP and TQ-315DP loudspeakers is the Converging
Elliptical Waveguide™ (CEW™). This gives many user advantages. The comparatively short flare
length allows the HF and LF components to be physically aligned in the cabinet, so ensuring
coherent arrival at the listener’s ear irrespective of distance from the loudspeaker. The elliptical
format shapes the wavefront smoothly, and eliminates reflections in the throat area. Additionally
this design does not suffer from the distortion typical of horns employing diffraction edges.
The waveguides can be removed and rotated through 90º in the cabinet, which allows the
products to be installed in either vertical or horizontal formats while retaining the required
coverage.