CD volume imbalance

High Efficiency Speaker Asylum

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I have been using Altec 908-8a compression drivers with GPA aluminum diaphragms for years. Recently, one of the drivers is just slightly lower in volume than the other. I thought that I was losing hearing in my right ear, but when I turned around, the problem turned out to be a slight imbalance between the drivers. What might have caused this? Is there anything I can check that might be affecting the response? Dust or something in the gap? Do ferrite magnets lose charge over time? I suppose I could use an L-pad of fixed resistors to balance them, but I would prefer to correct the problem if I can.

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Topic - CD volume imbalance - floydandrews 10:48:47 05/21/23 (3)

RE: CD volume imbalance - Hornlover 07:57:47 05/22/23 (2)

RE: CD volume imbalance - floydandrews 08:01:58 05/22/23 (1)

RE: CD volume imbalance - bare 07:52:22 05/26/23 (0)

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