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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: RE: I thought they would sound better.. posted by bobinaz on November 19, 2007 at 20:04:10:
"My amp for the KEF's is an Onkyo m-504 with a rated wpc of 170 into 8 ohms. So it should be over 300 wpc going into 4 ohms"
Theoretically some amp designs should double their power into 4 ohms but not all amps do so the Onkyo may well not deliver over 300 wpc into 4 ohms. That power increase into 4 ohms comes with a greater current draw and the amp may not be able to deliver the current required in order for it to double its power.
Some people look at whether or not an amp can double its 8 ohm power rating into 4 ohms and regard the inability of an amp to do so as a sign of poor design or implementation. On the other hand, some manufacturers trade on that tendency and rate their amps slightly lower into 8 ohms than they could, simply to ensure that the 4 ohm rating can be twice the number of watts as the 8 ohm rating.
What counts is whether or not the amp can drive the speaker successfully and power ratings are a rather unreliable guide to that.
David Aiken
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Follow Ups
- RE: I thought they would sound better.. - David Aiken 22:44:22 11/19/07 (0)
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