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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . posted by Brian H P on February 26, 2024 at 15:06:43:
A Dyna ST-70 tube amplifier has an output impedance of .5 ohms on the 8 ohm tap. Playing a 8 ohm speaker, that would provide a damping factor of about 16.
walkstoslow has a SS Sansui from the 1970's with a damping factor of 70.
The output impedance of his Sansui is .115 ohms.
An amplifier with an output impedance of .115 ohms playing a 8 ohm speaker through wire with no resistance (I know there is no such thing) will have a damping factor of 70. Add speaker wire resistance of .115 ohms (a little less than 25 feet of 14 gauge) and the damping factor goes down to 35.
My only point is, speaker wire resistance only causes a small reduction in power to the speaker but decreases the damping factor by much more. So the reason for large speaker wire is not more power but more control.
Tre'
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Follow Ups
- RE: Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . - Tre' 19:49:10 02/26/24 (5)
- thanks, Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . - walkstoslow 07:41:12 02/29/24 (2)
- RE: thanks, Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . - Lew 11:22:49 02/29/24 (1)
- RE: thanks, Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . - walkstoslow 12:41:17 02/29/24 (0)
- RE: Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . - Lew 07:38:44 02/29/24 (1)
- I think it depends on the speaker - Tre' 19:04:44 03/01/24 (0)
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