Posted by Wayne Parham [ 66.137.58.85 ] on April 05, 2005 at 18:42:27:

In Reply to: Does anybody here know how to add and subtract? posted by wunhuanglo on April 05, 2005 at 18:30:22:

When you short the voice coil, you increase damping. That makes Qts go down. When the voice coil is open, it has no effect, no change on Qts. When you partially short it, as in putting a resistor across it of a few ohms, it is in between.

This is in parallel with the output impedance of the amplifier. Less impedance makes more damping, lower system Q. Higher output impedance makes less damping, higher total Q.

Replies:

• Well, dammit... - wunhuanglo 21:37:53 04/05/05 (3)
  • Re: Well, dammit... - Wayne Parham 05:21:32 04/06/05 (2)
    • Unfortunately.... - wunhuanglo 02:57:55 04/07/05 (1)
      • Re: Unfortunately.... - Wayne Parham 05:52:29 04/07/05 (0)