What exactly is "the noise floor" and what contributes to it?
Absent the usual suspects (tube noise, ground hum loop, etc) what's ironic about this phenomena is you don't realize the "base level" noise floor in your system until you add / change something that allows you to hear the reduction.
Absent the usual suspects (tube noise, ground hum loop, etc) what's ironic about this phenomena is you don't realize the "base level" noise floor in your system until you add / change something that allows you to hear the reduction.
A real nice listening room might have a 20 dB SPL background noise level.
But most rooms have a 30 dB or high SPL background noise level.
Classical music recorded in a concert hall is lucky if it's much under 30 dB SPL.
The lowest background noise level on my room at listening position is 24 db
C. Measuring with two different decibel meters
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