Looking for a replacement speaker for Macintosh 128K/512K/Plus

[rtappmeyer]

I have a busted speaker in my 512K Macintosh. I'm looking for a suitable replacement that looks/fits into the original spot and is as close as possible to OEM.

 

[wskjinfen]

That speaker isn’t a weird size or anything, but its impedance is 64 ohms. I usually replace it with a 32-ohm one, and the volume is about the same.