just hooked up amp for sub but now the speakers (stock bose) make a whining sound i spliced into the
01-04-2005, 01:21 PM
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just hooked up amp for sub but now the speakers (stock bose) make a whining sound i spliced into the
rcas from the head unit but when i use a high level to rca adapter the noise is gone fix or leave working with high level input. my sub arrives tomorrow so i dont know the soudn quality yet
01-04-2005, 01:43 PM
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How did you splice into the pre-outs from the HU
did you connect the RCA screen to the common (screen) going to the Bose amp.
I have connected many Alpine amps to the stock Bose system (splicing into the connector on the Bose amp, not the HU) and had no problems at all.
Is the whining engine whine or something else?
I have connected many Alpine amps to the stock Bose system (splicing into the connector on the Bose amp, not the HU) and had no problems at all.
Is the whining engine whine or something else?
01-05-2005, 03:53 PM
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highlevel input converter's are terrible
you are amplifying an already amplified signal, so are bound to get distortion and interference.
All of these devices are designed to present a load of 4 ohms to the speaker outputs you are tapping into, whereas the Bose system works on 2 ohms, so you will be compromising the Bose amp.
You can hook low level RCA's from your amp straight to the pre-outs going to the Bose amp. This provides a clean untainted signal.
All of these devices are designed to present a load of 4 ohms to the speaker outputs you are tapping into, whereas the Bose system works on 2 ohms, so you will be compromising the Bose amp.
You can hook low level RCA's from your amp straight to the pre-outs going to the Bose amp. This provides a clean untainted signal.
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01-06-2005, 01:52 AM
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I doubt that, the whole principle of these devices is that they can't work perfectly
They are a lazy, last resort, i.e. if you can't be arsed to do the job properly, or your head unit is so antequated it doesn't have pre-outs to hook into.
Basically you are taking a signal that has aleady been amped by a low quality amp with all the noise and distortion that it has aded, then taking it back down to a low level, only to be amped again by a quality amp. At best the sound quality will be compromised (so not perfect), at worst you get hideous hiss/distortion and possible engine interference.
If it works perfectly, what's the purpose of this post again, remind me?
Basically you are taking a signal that has aleady been amped by a low quality amp with all the noise and distortion that it has aded, then taking it back down to a low level, only to be amped again by a quality amp. At best the sound quality will be compromised (so not perfect), at worst you get hideous hiss/distortion and possible engine interference.
If it works perfectly, what's the purpose of this post again, remind me?
01-06-2005, 07:55 AM
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thats funny cuz i am the one in the car that hears it. it sounds good
i already tried the pre otus from the headunit it it was sounding horrible. anyways i used a rca converter and it worked. the purpose of this post is that i tried one way it didnt work i asked fr advice no one replied for a while so i tried soemthign else. and it worked. thats why i said it worked . what was the purpose of your post. i don't care about what i basically am trying to do. i did it. it worked. im happy.
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