Quote:
Originally Posted by eskaman
I have the Bose setup. I'm wondering if it's been there all the time and I never noticed it before (I was in the car with the radio and all power off; to hear it with the doors open and any ambient noise you have to have your ear right up against the speaker).
.
|
Mostlike there all along, but you just noticed it now. Especially at the low levels you noted. IN this respect,t he Bose is like any other amplifier - it has inherent analog noise, and sometimes, that will just plain show up as a very low level hiss. A hum would be different - that would indicate a ground loop or other feedback in the circuit that remains in the low frequency band.
Quote:
Originally Posted by eskaman
I'm pretty sure there's no radio damage either; it's not like I messed with the radio power or spliced into the radio harness anywhere.
.
|
Doesn't sound like it unless you unplugged/modified other wires or connections. Worst you could do to yourself in unplugging the antenna cable is to break something in the cable or the connector and completely lose radio (and RF modulator) reception.
Quote:
Originally Posted by eskaman
With the radio on and iPod hooked up I notice some of the typical noise and hiss associated with that setup. Turning up the sound turns the hiss up too. However, the hiss with power off is not affected by the volume knob.
|
I would not be surprised at some hiss (but at a really low level). If you had some hum then I'd suspect a faulty ground connection, but as I noted earlier, only if you did anything with connections and or wiring other than the antenna cable.
Seems right - with power off, if the amp is staying on longer (and it seems that it is) but the head unit is powering down, then the volume control should have no effect. That's why I asked if you could affect the volume level of the hiss with the power on but no audio source (such as with CD selected but stopped).