Re: impedance questions with lynx one and old mic pre / headphones


> > Less current = distortion
>
> No direct relationship there.

Right. I've been studying in between posts so I know what you mean. I
didn't realize that current is volume and voltage and current aren't
directly porportionate (it depends on resistance). You need more
voltage to get a little more current (volume) porportionate to
resistance.

> > Less voltage = less volume?
>
> Well, sort of. But since voltage, current, and impedance are all
> related, you can't generalize.

Got it (or getting pretty darn close :)

>
> > Kind of like a 9v battery has built in resistance?
>
> Yes. There's some guitar player who says he can tell what kind of
> battery is in his effect pedals by how they respond to the battery's
> internal resistance.
>
> > Why not reflect the true output of the
> > battery at 2 volts or whatever it drops to as a result of it's internal
> > resistance... anyway
>
> Because you don't know how much voltage will be dropped across thei
> inernal resistance unless you know how much current is being drawn from
> the battery. An ordinary voltmeter draws practically no current, so the
> terminal voltage that you measure doesn't have any voltage drop because
> of the internal resistance. A "battery tester" has a load that draws
> current, so it can display the voltage across that known load. Usually
> it's just a "good" range on the meter.

Makes sense now. thanks.

> Things of the generation of your RCA mic amplifier, as Scott and Paul
> pointed out) were designed to operate with matched output and input
> impedances. There were almost always transformers at the output and a
> transformer expects to see a known load impedance. But we don't design
> gear like that any more. It's too expensive.

That info sure helps.

> You need to read up on Ohm's Law. Then it will all become clear.
I went back and looked at it and it makes much more sense now. Thanks
again Mike!

.

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