And then there's polarity to consider. You're measuring the voice coil DC resistance. Speakers work on AC, they have an "impedance" which is frequency dependent due to reactive components. So the "ohm load" the amplifier will see, as you put it, will be higher than your reading and all over the place depending on frequency components of the signal. And the wires act as transmission lines which can also have some effect on the impedance the amplifier output drives.
@@theaterdesignco That's okay, it's a complex issue (no pun intended) 😂 Man it's been ages since I worked with polar coordinates and complex impedances. It's fundamental in electrical engineering and helps with speaker design. But yeah just hooking stuff up it doesn't really help to know that a nominal eight ohm driver may present twenty something ohms to the amplifier at resonance. However when hooking up a pair of speakers for stereo listening, it makes a difference whether they're connected in phase with each other or not. Don't most modern amps have internal protection against excessive output current and excess thermal buildup?
And then there's polarity to consider.
You're measuring the voice coil DC resistance. Speakers work on AC, they have an "impedance" which is frequency dependent due to reactive components. So the "ohm load" the amplifier will see, as you put it, will be higher than your reading and all over the place depending on frequency components of the signal.
And the wires act as transmission lines which can also have some effect on the impedance the amplifier output drives.
You are correct in some ways but I am explaining basic ohms law for DIY guys so they do not blow up their gear!! Cheers
@@theaterdesignco
That's okay, it's a complex issue (no pun intended) 😂
Man it's been ages since I worked with polar coordinates and complex impedances. It's fundamental in electrical engineering and helps with speaker design. But yeah just hooking stuff up it doesn't really help to know that a nominal eight ohm driver may present twenty something ohms to the amplifier at resonance.
However when hooking up a pair of speakers for stereo listening, it makes a difference whether they're connected in phase with each other or not.
Don't most modern amps have internal protection against excessive output current and excess thermal buildup?
I want to know how to determine one speaker from another in order to label it properly. What can I use to do that?
Same process. The toner does one speaker at a time.
BS video
Seemed to help several people. What this issue?