Input/output signals in audio systems

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7 Dec 2008
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Not sure quite how easy this question is to answer, for my electronics coursework i am making an audio amplifier/graphical equaliser system which i intend to keep and use afterwards.
To build this system i need to know what kind of signals i will be getting at the input and what i want to produce at the output.
What i need to know is from my Xbox 360, PC, IPod and TV, what amplitudes of signals will i be getting? and at what output impedance?
Similarly what is the input impedance of my Logitech X-540's and what kind of voltages does it want to be fed?

Any links to datasheets or sources would be greatly appreciated
 
fantastic, thanks!! i managed to find the datasheet for the logitech Z-5500's and their input impedance is 8k, is it ok to presume the x-540 is similar?
 
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