On 2022-04-18 11:45, Jim Brown wrote:
On 4/18/2022 11:21 AM, KENT TRIMBLE wrote:
Many found at hamfests are 2 ohm speakers while amateur receivers and
transceivers for the last 60 years have required 4-8 ohm speakers.
FALSE! Impedance matching has not been practiced in audio for at least
60 years -- it dates to the days of vacuum tube output stages. There's
nothing wrong with using 2 ohm speakers with gear rated 4-8 ohms --
indeed, they will play a bit louder for the same volume setting!
*** In fact, I seem to remember a feature of good audio amps - "damping
factor". It's basically a measure of
how low-low-low - much lower than the speaker impedance - the output
impedance of the amp is. A good damping factor
helps control inertia effects in the speaker cone - helps give you
"tight bass".
- Jerry KF6VB
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