In Reply to: RE: LRS or used 1.7? posted by farfetched on October 13, 2020 at 14:21:30:
Yes, a sinewave sweep, switchable left or right channel should do it. In music problems can be difficult to hear, but can sound up instantly at a specific frequency if there's an acoustic-mechanical resonance from delam or some other issue.
I've heard this myself.
Try a computer & an app.
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Follow Ups
- sinewave sweep - DrChaos 16:25:04 10/13/20 (0)