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| Date: |
August 11, 2003 at 12:16:02 |
| From: |
Richard Greene, [ncecc2.ford.com] |
| Subject: |
Rane Corp. white paper on amplifiers and clipping |
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URL: Rane Corp. white paper on clipping |
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The paper is from a pro sound point of view where
high SPL is the primary goal and clipping distortion is likely to be ignored until something breaks!
-- that concept helps sell Rane limiters.
... But home audiophiles are unlikely to tolerate levels of clipping that would be tolerated in
pro sound.
Severely clipping a 100Hz. square wave with a 100wpc amplifier:
1.1kHz. harmonics were calculated as 0.83 watts
1.3kHz. harmonics were calculated as 0.589 watts
-- Higher level harmonics were not shown on the chart
(Note: As the frequency increases, the level (watts) of clipping harmonics decreases) because a 1.0 kHz. turnover frequency was assumed (home audio typically uses a one or two octave higher turnover frequency for tweeters) and those clipping harmonics shown on the chart (1.1kHz. and 1.3kHz.) are just above the 1.0kHz. turnover frequency = the most powerful and most dangerous clipping harmonics resulting from the 100Hz. test tone ... and they only added up to 1.4 watts ...
and 1.4 watts is not going to destroy any tweeter!
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Posted with TalkShop version
2.74 |
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