- Jul 11, 2001
- 40,880
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I've used ER4S (2 pairs) for around 10 years and now have an ER4P set (all great portable earbuds type headphones, never had a discontinuity!!), and apart from occasionally needing to replace one of the white buds (my preference), the issue has been that once in a while one of the channels goes almost silent due to getting dirty, presumably with ear wax. They supply extra filters and a tool to replace them, but I've been saving my dirty filters thinking that I can maybe clean them rather than order new ones. Has anybody tried cleaning these with a solvent?
