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C5 Bose system
I have an '02 Z with the Bose AM/FM/CD (no changer). Overall it works quite well. Lately however, I've noticed that on occasion, I lose bass on the drivers side, both door and rear speaker. Mid and high range sound just fine. Just no bass. When this happens, I also notice several low-level tones that don't change either frequency or volume regardless of the volume control or engine speed (I'm getting to "it's not alternator noise"). It isn't one frequency either - it sounds like maybe 4 or 5 different ones and appear to range from about 400 or 500 Hz to perhaps 1000. And they all "play" simultaneously, sorta like a chord. The thing is, it doesn't always happen and the entire system works perfectly.
Is the Bose system bi-amp'd? If so, I suppose there's a problem with the low-end amp? |
RE: C5 Bose system
Ken,
To answer your question, yes, the C5 Bose speaker system is biamped. I have a '99 C5 and I just replaced the Delco CD with an aftermarket unit. The Bose speaker system consists of: [ul][*]3" full-range driver in each front door powered by the internal power amp in the radio.[*]8" mid-bass / bass driver in each front door powered by a 100 watt digital amp.[*]5.25" full-range driver in each rearside panel powered by the internal power amp in the radio.[/ul] The 8" driver go up to about 400 ~ 500Hz. You could possibly have a bad left channel in the radio if the back speaker is being affected too. If the 8" was the only speaker acting up, then I would say check the digital amp only. CG ORIGINAL: KenHorse I have an '02 Z with the Bose AM/FM/CD (no changer). Overall it works quite well. Lately however, I've noticed that on occasion, I lose bass on the drivers side, both door and rear speaker. Mid and high range sound just fine. Just no bass. When this happens, I also notice several low-level tones that don't change either frequency or volume regardless of the volume control or engine speed (I'm getting to "it's not alternator noise"). It isn't one frequency either - it sounds like maybe 4 or 5 different ones and appear to range from about 400 or 500 Hz to perhaps 1000. And they all "play" simultaneously, sorta like a chord. The thing is, it doesn't always happen and the entire system works perfectly. Is the Bose system bi-amp'd? If so, I suppose there's a problem with the low-end amp? |
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