Wanting to see the effect of the dips in 1 to 3 kHz, I developed a single filter at 1189 Hz. For confirm I went through the rest of my test playlist and the answer stayed the same. Usually the first few seconds of the first track tells me most of what I need to know about the sound of the speaker and this situation was no different. I always test speakers with the same set of tracks and in the same order. This so called spinorama shows us just about everything we need to know about the speaker with respect to tonality and some flaws: Reference axis is approximately the center of the tweeter.Īcoustic measurements can be grouped in a way that can be perceptually analyzed to determine how good a speaker is and how it can be used in a room. Clear high frequency response is responsible for ease of measurement in this regard. I performed over 1000 measurement which resulted in error rate of about 1%. In a nutshell, the measurements show the actual sound coming out of the speaker independent of the room. ![]() Both of these factors enable testing in ordinary rooms yet results that can be more accurate than an anechoic chamber. ![]() It also measures the speaker at close distance ("near-field") which sharply reduces the impact of room noise. This is a robotic measurement system that analyzes the speaker all around and is able (using advanced mathematics and dual scan) to subtract room reflections (so where I measure it doesn't matter). Measurements that you are about to see were performed using the Klippel Near-field Scanner (NFS). Speaker also feels quite dense and solid which is good. Love the wide apart binding posts that are easy to tighten and loosen.
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