Came out of the enclosure and old iPod clock radio pictured. It has pretty decent sound for such a small driver, but I didn't expect this oddity upon removal.
this post was submitted on 03 Jun 2025
10 points (91.7% liked)
DIY Audio
380 readers
1 users here now
A place for everyone who likes to tinker with DIY audio projects, or just fix/upgrade his/hers old amp, receiver, CD player, speakers, etc.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Please note the 6 ohm value printed is the impedance, not the resistance. However measuring the resistance can still be useful, if it measures open circuit or extremely low it can indicate an issue. Just don't expect it to be exactly the same as the impedance.
So how would you measure the impedance. Impedance being the resistance of the inductive load at a certain frequency. The Henry value of the coil isn’t printed there nor is the tuned frequency. 6ohms would be one value you could use to work back wards through the equation.
It’s been a long time since I studied this but this is something that always puzzled me. I ended up buying and a special meter for this stuff. The name of that even escapes me
I haven't messed around with the math in so long that I do not recall most. Now, I just assume it is a peak power rating. Like, 6 ohms at 5 watts means no more than around 800 mA.
If I'm hacking audio, I don't typically do much with output stages. I would rather mess with the preamp, filters, and buffer.
This post was more of a curiosity about the second magnet. I'm curious how they applied it, why, the glue, process, and if it is just in serial polarity or if there is more going on in this application.
When I did my electronics training one of my instructors was an audiophile. He weod go down the rabbit hole on speaker coil windings, amps, anything audio. He owned a side business rewinding speakers(?) and making speakers.
The other kids listened intently and I was just wanting to get out of there or back on topic.