Attached is an inductance plot of one of my dayton drivers. http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-366
Overall shape looks good except for two things. Something weird by the peak and a little bump at 1800 Hz.
I've seen people identify potential problems from these. What am I looking for? Are the bumps from breakup, distortion, or something else?
Measurement was done in Speaker Workshop using an MLS signal.
I plan on trying to repeat the measurement tonight, as well as do the second driver I have of the same type. I'll overlay the "ideal" response as well.
All help appreciated!
AC
Overall shape looks good except for two things. Something weird by the peak and a little bump at 1800 Hz.
I've seen people identify potential problems from these. What am I looking for? Are the bumps from breakup, distortion, or something else?
Measurement was done in Speaker Workshop using an MLS signal.
I plan on trying to repeat the measurement tonight, as well as do the second driver I have of the same type. I'll overlay the "ideal" response as well.
All help appreciated!
AC
DOH! You are right. My coffee had not kicked in yet this morning when I typed that message.
Impedance, that's what kind of plot it was.
That follows that the breakup is starting there.
I had the crossover there before I tested it (thinking that it could play higher without distorting). It sounded great everywhere except right at the crossover where it got that ultra-harsh sound. But only at that exact frequency. When breaking in the speakers I could listen for an hour to music and not hear the effect at all, then one note or voice hit right there and OUCH!
It did not seem to attach so I'm trying again.
Also, moderators, if one of you could change inductance to impedance in the subject, I'd appreciate it. Thanks.
Impedance, that's what kind of plot it was.
That follows that the breakup is starting there.
I had the crossover there before I tested it (thinking that it could play higher without distorting). It sounded great everywhere except right at the crossover where it got that ultra-harsh sound. But only at that exact frequency. When breaking in the speakers I could listen for an hour to music and not hear the effect at all, then one note or voice hit right there and OUCH!
It did not seem to attach so I'm trying again.
Also, moderators, if one of you could change inductance to impedance in the subject, I'd appreciate it. Thanks.
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