Bottlehead Forum

RE: OT - impedance matching

71.80.65.127

In Reply to: RE: OT - impedance matching posted by tonyb_2k on December 04, 2007 at 10:28:48

Tony,

There is a generalization that sources should have low impedances (50 or 600 ohms) and inputs should have high impedances (100k/1M ohm).

The only thing that looks odd is the frequency counter. The input is very low.

One of the worries is that if you have a low impedance input, the source will run out of current before reaching maximum. It "Current Clips."

Maybe you could put a 500k resistor in series with the signal lead going into the Frequency counter? But the signal level will drop drastically. It may still be enough to get a count.

"Remember, YOU are the only one who needs to like the sound of your system."
Grainger Morrison
There Is Only One (Grainger Morrison, it seems)

Follow Ups:

My mistake... - tonyb_2k 04:38:55 12/06/07 (0)
RE: OT - impedance matching - Doc B. 07:59:08 12/05/07 (0)

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