- Jan 23, 2020
Hmm, I've never really heard of damage to headphone drivers whilst being used for normal listening, even with EQ.....as long as you're operating the headphone within it's max allowed power. I'm not saying yours didn't happen, but I'm surprised. There's plenty of headphones that won't be damaged by EQ'ing to Harman Bass - pretty much all of them. I mean exceptions might be headphones that need a 20dB boost in the bass to reach Harman for instance, but I can't really imagine damage ever happening due to a +10dB boost to the bass for instance. I don't think you need to worry about EQ'ing in headphone bass. It's optimal to have low distortion headphones in the bass though that can cope without distortion issues with EQ to Harman Target though......and such headphones for sure would not be damaged by your EQ over time. There might be somekind of manufacturing defect with your Hifimans, which one have you got?Id imagine this is also with Amir’s test tracks as well, so it is indeed being pushed to see what it’s limits are. Even then if the headphone doesn’t distort there can be issues. I have a set of Hifimans that suffered a loss in membrane tension from being on the Harman target. Now with sub bass they go intermittently silent from exiting the magnetic gap and have resonances. Probably won’t be buying any more headphones until I get one that doesn’t really need EQ in the bass region. There’s always that possibility that it could damage something if a lot of extra energy is needed in one area, and can’t fault Amir since he only has a short period of time to do the review. In my case it’s cumulative damage over time from stressing the drivers.
Makes you wonder about those reviewers that do things like “300 hour break-ins“ with pink noise and hear a difference. That is basically an entire lifetime‘s worth of use if it’s at high SPLs, and probably does “break” them in, but in a very permanent and detrimental way.