My friend bought a pair of loudspeakers same model as mine; Braun LS200. His pair was kept storage in all time hot climate. When compared to mine, their sound differs to each other. His pair lost sparkle and sweetness. We decided to switch both pairs to active mode, the speakers are biampable. And we varied crossover frequency of the woofer of my friend’s pair until the two speaker pairs sound similar to each other. We found that the crossover on my friend’s pairs was lowered at some point to let their sound similar to mine.
Moreover, I used to post the thread here (very old thread) about my discovery after one woofer of my ADS L620 speakers was realigned the voice coil position, without any parts replaced, and its sound changes.
I wonder do the drivers degrade themselves over time? Such as the magnetic strength, weight of the cone (dried out), or even density of the cabinet’s material, etc.
I used to talk to the technician. He told me it’s possible. For instance, a voice coil is designed to stay inside the magnetic field about 7/8”, due to aged of suspension, it may stay only 5/8” inside the magnetic field. As a result, the sound changes.
Moreover, I used to post the thread here (very old thread) about my discovery after one woofer of my ADS L620 speakers was realigned the voice coil position, without any parts replaced, and its sound changes.
I wonder do the drivers degrade themselves over time? Such as the magnetic strength, weight of the cone (dried out), or even density of the cabinet’s material, etc.
I used to talk to the technician. He told me it’s possible. For instance, a voice coil is designed to stay inside the magnetic field about 7/8”, due to aged of suspension, it may stay only 5/8” inside the magnetic field. As a result, the sound changes.
Yes, but we had experimented on the tweeters as well, nothing strange though but the woofers.
I don't understand why you don't use measuring equipment to examine problems like this. I noticed this in other of your threads as well.
Could you post a picture of the input terminals on your LS200? Are they on the bottom or back side of the cabinets?
