Hey Folks,
I recently acquired KEF Reference 3 for a good price since it had a dent in midrange cone which I was able to iron out to an acceptable cosmetic level. However, while measuring them for no particular reason, I discovered an issue on the other one which seemed untouched inside out - the highs start to roll off pretty fast after 14 KHz according to the measurement with my uncalibrated DIY mic. I opened it and checked everything visually, cleaned the tangerine and the dome with some alcohol, but it did not make any difference. Since I am not the first owner, I can't say if this was something present from day 1. I cannot hear a difference in the sound between the two, and the the imaging is excellent. This comes as no surprise, since my hearing stops around 13kHz anyway 🙂
Any ideas what this could be?
I recently acquired KEF Reference 3 for a good price since it had a dent in midrange cone which I was able to iron out to an acceptable cosmetic level. However, while measuring them for no particular reason, I discovered an issue on the other one which seemed untouched inside out - the highs start to roll off pretty fast after 14 KHz according to the measurement with my uncalibrated DIY mic. I opened it and checked everything visually, cleaned the tangerine and the dome with some alcohol, but it did not make any difference. Since I am not the first owner, I can't say if this was something present from day 1. I cannot hear a difference in the sound between the two, and the the imaging is excellent. This comes as no surprise, since my hearing stops around 13kHz anyway 🙂
Any ideas what this could be?
