My wife has an old boom box that she uses when she's sewing. It has a 3 CD changer (rotary) but lately its been failing to recognize CDs in any of the slots. This has happened before and I've been ...

If your receiver is 4-ohm tolerant, those should work okay. the minimum impedance of a 4 ohm speaker is typically 3.2-3.7 ohms anyway.

Using little else than the parts inside an old GE boombox, Michael Colombo made TapeScape, a robot that front-mounts the jambox’s tape head and uses it to follow strips of cassette tapes on the ground ...