2. amps-preamps
  3. 144153-45726

Impedance match

My understanding for impedance matching a preamp or upstream source having a volume control (e.g., a DAC with volume control) to a downstream amplifier is that an appropriate “impedance match” is for the amplifier to have an input impedance at least 20-fold to 50-fold greater that the output impedance of the upstream preamp or source output impedance. One dealer told me that the appropriate “impedance match” between to such components is exactly that—an identical match of the same impedances. 

So which is it?
128x128celander

Showing 2 responses by tweak1

tweak1
3,553 posts
 
None of this makes it easy for us non pro-audio educated to make a correct purchase of a pre or amp/s
tweak1
3,553 posts
 
What I mean is (and I do not consider myself a typical component purchaser is: this topic has never been explained or mentioned in any component manuals

I have probably flipped through 10 preamps/amps in the last 15 years

I can't help but wonder how much it had to  d with impedance mismatches 
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