Okay, these SCM7V3’s are not inherently bright. BUT they can be under certain conditions that would also affect any speaker. The SCM7 V3 speaker is spectrally well balanced and measures very low in distortion.
This is a case where experimenting with EQ would be a useful avenue to try, for what it shows you. If rolling off the HF manually does not help, and you can experiment with at what frequency [and above] gives you results, you can find the thing in the room that emphasizes this band. This is how we do it in the studio business, find what (in the room) causes the artifact and fix it. These kind of problems are often an interaction of the speaker with something else. Room acoustics, materials in the room or a unique signal chain can cause such issues. Changing speakers is sometimes equivalent to treating the symptom not the cause.
There is something you are sensitive to behind this, the question is what? My vote, knowing a lot about the speaker, is it’s not the speaker but one of these
1) a HF boosted acoustical environment,
2) bright signal chain,
3) bright cables,
4) source material (such as older recordings) that lacks low end and creates the perception of "thin" or bright.
These kind of problems are best solved through a process of elimination. Find out what it isn’t, then keep going until you find something that changes your perception. If I was there, I would, in the following order: 1) move the speakers, 2) move your listening position, 3) switch cables, 4) try a different source you know is excellent, (like Fleetwood Mac, Rumours), 5) try a different signal chain (even a cheap one). Usually, such a list of tests will give you information that will lead to a solution.
Brad
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