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I was listening to kenny g this weekend in the car... and I noticed that at around 35 (volume level), I could hear the hissing pretty well
sounded as if I were listening to a tape, the music was a bit louder than the hissing, but it was quite noticeable. I haven't checked to
see if other CDs are like this, but if they are... what could be the cause of it? amp? RCAs or the head unit?

edy

 
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It happens to me when I plug my laptop into my amps and I set my laptop volume toooooo high (max) and then I control the volume from winamp. Thus I opted to leave the laptop volume half way and then continue to control the volume from winamp.

I don't know if it's the best way, or whatever but it takes care of it. To answer your question, my Laptop is acting as the head unit so I would imagine it's your HU. However, DON"T QUOTE ME, I'm just telling you what my similar situation is like.

Aldini

 
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Do you have stock head unit or aftermarket????

it sounds like you have amps aswell???

well if you are using aftermarket amps and speakeres with the stock deck what is happening is the headunit is running out of dynamic headroom......or to put it in simple terms it's run out of power ......what you are doing is turning the high level outputs from the headunit into low level inputs to the amp and at the upper range of the volume you notice this because the headunit is working very hard and is not putting out clean power, this noise in turn is amplified by the amp, and put out to your speakers for you to hear.....the solution is to purchase an aftermarket headunit or dont turn the volume up so high


if you are using an aftermarket headunit and your are having this problem it is because you have not matched the gain on the amp to the output of the deck.....the gain on the amp is not a volume ****, it is there to match the output from the RCAs on the deck to the amp.......so set it up like this......turn the gain all the way down on the amp.....turn the deck 3/4 of the way up....turn up the gain till you hear distortion or the hissing.....then turn the gain down 1/8 of a turn......if it's not lould enough for you, you will require an amp with more power

how bout a list of your system, and maybe I can help a little more

Hope this helped

Just my $0.02

 
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Thanks, Swifty... I'll try setting my gains, I've never really gotten around to that. I have the amp gains for the components set at
~3/4 I believe. Kind of a pain in the butt since the left and right have individual gains controls.

my system (should of posted this when I asked):

Eclipse 5503R deck
Infinity 60.3cs
Zapco Studio 100, 50x2

also have a sub and amp for that, but... they're not the ones hissing =)

I'll have to try setting it after work when everyone's gone