Re: preout impedance
There is nothing wrong with using a low output impedance with a high input impedance. this isn't RF. further, the only case i can think of where equipment would be damaged would be in the low-output, low-input impedance case.
Originally Posted by DidUHearThat?
this would seem to be the exact opposite of what happens. A typical amplifier might have a DF > 100 when used at full power. this means the output impedance of the amplifier is 100 times less then the impedance of the load. Similarly, line drivers often go for very low output impedances as well.
You want the output of one device to match the input of the next device. It's very similar to the idea of matching sub impedence to the amplifiers output. It doesn't really matter much what the impedence is, you just want them to match to get the best performance from both.
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