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RE: High impedance means 'high'

Posted by Ralph on October 8, 2010 at 09:08:45:
When you are referring to a conversation about the output impedance of amplifiers, in the US anyway, the engineering language is such that 4 ohms would be considered a 'high output impedance' and 0.5 ohms would be somewhere between low and high, as most amps that have a 'low output impedance' are often 0.1 ohms or less.

There is no such thing as a power amplifier that has an output impedance that is say, 100 ohms or more. That's not an amp that can make any appreciable power, so by definition its not in the conversation.

So it does appear that the mother language is playing a role here.