Re: How do I measure the Le of a speaker? [message #18702 is a reply to message #18695] |
Thu, 06 April 2006 17:02 |
Martin
Messages: 220 Registered: May 2009
|
Master |
|
|
Unfortunately, the effective Le and Re of the speaker's voice coil are going to change with increasing frequency. Fortunately, the Zobel circuits are not that sensitive so getting a Le and Re result at 1 kHz is good enough for sizing the Zobel. This is why there is typically a 25% factor in the rule of thumb equations for calculating the Zobel's capacitance and resistance. Martin
|
|
|