$9.49 4x8 homemade guitar speaker cab from goodwill

[@picksalot1]

Pretty sweet deal. Knowledge is valuable. 🤘

[@rjake61]

DC resistance is typically lower than impedance. Four 8 ohm speakers in series/parallel is 8 ohms.

[@andrewdrumstuff]

And what happens when you add a tweeter. Does it drastically change impedence