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Posted in Television on April 23, 2019
Klipsch has divided the RP-8000F horn into two sections by the copper ring embedded into the horn. The inner section is a conical plastic piece which serves as the throat of the horn, and the outer section, the mouth of the horn, is a softer silicone piece that takes on a more orthogonal shape. The softer silicone material of the mouth is used to avoid bell resonances in the horn. The throat of the horn is a round conical shape in order to reduce early diffractions as the soundwave leaves the tweeter diaphragm. The squarish mouth shape governs its dispersion pattern. A 1” titanium dome tweeter is used to load the horn, and it uses what Klipsch calls the ‘Linear Travel Suspension’ system which is a carefully designed suspension that allows for larger excursions of the moving assembly before the suspension thwarts linear motion thereby incurring distortion. Titanium seems like a natural choice for the diaphragm material since the horn-loading and lower crossover point might be more than softer dome types such as fabric could withstand. The rear chamber of the tweeter is vented to allow backwave energy to better dissipate instead of being reflected back into the diaphragm which would also increase distortion.”
When it comes to judging the picture quality of either a television or projector, the impact of incorrect picture settings cannot be underestimated. For this reason, every display we review at StereoNET is ISF Calibrated before we make any judgements regarding picture quality.
All measurements of the Sony VPL-VW270ES were completed with an xrite i1Pro 2 spectroradiometer and x-rite i1 display Pro colourimeter (profiled with the i1Pro 2). The meters were tripod mounted, enabling measurements to be taken directly from the screen (Severtson 100” fixed CineGray screen).
Colour, Gamma, Grayscale and Luminance measurements were taken using 10% window patterns. Meter integration times were measured, and final readings taken from a mean of two readings to reduce anomalies.”