Take it to the shop where they can put test equipment on it. If you had a multimeter you could run the 1khz test tone at 0db on the volume and see what the volts are on each side.
How to Solve High-Frequency Suckout in Room?
After upgrading my system including speakers, I'm noticing with more upper frequency detail, that the right channel has some degree of missing high frequencies. I've confirmed it is my room by swapping speakers, swapping cables for left / right, and of course the cables are all in phase.
My room is quite large, open concept, but my system is to one side of the open area. Ceilings are vaulted and are 12ft at highest point. The speakers are not near any corners, due to a jut-out on the right side and the other end being completely open. However, there is a partial wall on my right side that has no treatment on it that extends up to 12ft, from the listening position. This wall starts 3.5 feet in front of the right speaker (about 1.5 Ft to the right of the right speaker) and continues to behind the listening position.
I've tried putting pillows against the right wall and thought it may have made the problem worse? There is no wall on the left side, it is completely open. Does this make sense that there is missing high frequency on the right side, where the wall is? And, is there anything I can do to fix this? I will attempt to draw the setup but I'm guessing the alignment will mess up when I post this!
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@retiredfarmer I will try getting banana to spade converters; will go to my local shop this week. Then I can try my old amp. I'm not sure the issue will be detectable on lower-resolving equipment however. The issue was barely noticeable (but I did detect it) on my prior B&W speakers which were one model down. Seems that when the mid and upper frequencies are less transparent, the issue is harder to detect. Going to an Arcam A85 from a Gryphon Diablo 300 I expect will be far less resolving (But, I loved that Arcam for what it was, it was an unusual star among other Arcams at the time which were mostly junk). @djones51 I have a multimeter and can try measuring the voltage on each side! Dumb question though: how do I play a 1kHz test tone, seeing as I normally stream through Roon/Tidal Hifi? My Gryphon dealer is actually not in the same city as me and I’m not sure my local shop is up for any sort of diagnostics.
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I did a quick test with my multimeter and will need to re-try the test tomorrow. Unfortunately I don't have the house to myself and people are sleeping! I do need to have my speakers connected to do this test right? I did find that the right side was consistently .001mv lower than the left channel across many but not all frequencies, when my amp was set to it's lowest volume setting - probably meaningless. Will try at higher volumes tomorrow. |
- 48 posts total