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Chip Amps Amplifiers based on integrated circuits

Speaker has light snow/fuzzy sound when idle
Speaker has light snow/fuzzy sound when idle
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Old 20th June 2005, 01:33 AM   #1
pigeon is offline pigeon  United States
diyAudio Member
Join Date: May 2005
Location: Georgia
Default Speaker has light snow/fuzzy sound when idle

Hello, I have finally got a suitable chipamp that you'll suggested.

But now, my question is..

The speaker and amp quality is fine.. but because I have the amp turned up (85-90percent power), I hear snow/fuzzy when nothing is being played through the speaker... Granted, I have to stick my ear right up to the speaker and listen VERY carefully, but the noise is there.

If I leave ths speaker/amp on like this in this state for 24/7, will this have negative effects on the driver or amp?

Or is this not uncommon?

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Old 24th June 2005, 08:35 PM   #2
SpittinLLama is offline SpittinLLama  United States
diyAudio Member
Join Date: Apr 2005
Location: In the Wild, Wild West
You're hearing the noise floor of the amplifier, white noise. What is the gain of your amplifier? What is the sensitivity of the speakers? It won't hurt anything as the amount of power going into the speaker is probably in the uW (microWatt) range.

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Old 26th June 2005, 12:53 AM   #3
mb is offline mb
diyAudio Member
Join Date: Dec 2002
Location: Singapore
The noise seems to be at a very low (ie. pretty acceptable) level. However, you seem to imply that the noise is there when you turn up the volume to 85-90% level. If the noise reduces with volume setting, then it's much more likely to be inherent from the source or preamp. Amplifier noise floor remains constant, since the gain is fixed.
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