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Undervolting power supply to lower volume
Undervolting power supply to lower volume
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Old 23rd September 2010, 11:16 AM   #1
mercc is offline mercc  Slovakia
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Default Undervolting power supply to lower volume

Hi,
is it possible to undervolt 230v 30 watts amplifier through lamp dimming control to lower output volume? Will it harm the amplifier if it has 230 volts power supply and lower voltage will be supplied?
Thanks
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Old 23rd September 2010, 11:43 AM   #2
sandyK is offline sandyK  Australia
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Location: Sydney
Quote:
Originally Posted by mercc View Post
Hi,
is it possible to undervolt 230v 30 watts amplifier through lamp dimming control to lower output volume? Will it harm the amplifier if it has 230 volts power supply and lower voltage will be supplied?
Thanks
IF the amplifier tolerates the lower supply rails, all you are likely to accomplish is severe clipping on louder music passages, with a high risk of destroying your tweeters. Don't even think about it.

SandyK
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Old 23rd September 2010, 01:50 PM   #3
Mooly is offline Mooly  United Kingdom
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Undervolting power supply to lower volume
If you want to lower the volume use attenuators on the inputs... leave the amp alone.
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