Smelly softening woofer and midranges


I have noticed a warm, plasticy smell coming from a speaker in my system. The plastic cones of the speaker seem to be getting soft, sticky, and attracking dust. I'm running within the power rating of the speaker. Polarity is fine. I never run over half volume, certainly not reference levels. Sound seems ok. I'm wondering what might be going on and how to troubleshoot things. Any ideas?
rogereckert

Showing 4 responses by rogereckert

Additionally, speaker sounds rather flat and veiled-certainly not clean sounding. Could be related, or perhaps an unrelated placement issue.
Ozfly, Speaker is less than a year old. Tweeter seems fine. There are two 6 1/2" woofers and a 5 1/4" midrange. Using your test method, the woofers were both quiet upon light compression. The midrange, however, made a rubbing sound-almost like the sound of a manual bicycle tire air pump, both on the in and out cycle of the test. The speaker's been off all day while I was at work. Nothing sticky noted now. Watcha think? Roger
Great ideas gang. I'll do more testing later this week. Since the speaker is still under warranty, I want to avoid any extensive tests that might void the warranty. Everything is pointing toward the midrange voice coil.
The speaker is in a non-smoking environment. I haven't had the speaker long. The previous owner may have been a smoker. I really don't know. What effect would smoke have?