speakers and ohms... front speaker replacement

since i have my front door panels off to rebuild/reinforce, i thought would be a good time to update the front door speakers - which on the 91-93 are a 4x6 inch opening for anyone who wonders - forget what size the 94-96 were but i recall installing round ones in the fronts of my old 96.


anyway, as you can see in the pics here, these are very likely the originals - pig tail attaachment, delco printing / made in Singapore?!
and what looks like an uncommon 10 ohm rating.

not sure if 12v car systems are different than home systems, but amps not equipped to handle lower ohm speakers - ie 4 vs 8 or 16ohms can actually be ruined by trying to power lower ohm speakers. - the lower the ohm, the more juice they require.
https://caraudioadviser.com/guides/how-do-ohms-work-with-speakers/and
https://www.lifewire.com/speaker-impedance-3134705
planning on swapping the head unit out - some broken pos jensen aftermarket - for a vintage roadmaster one i got a while back - cd with EQ - to keep the look original for now.

checking crutchfield and pretty much all speakers are 4 ohm, and a few 3 ohm - which IS common for most modern car systems.

any techies who can enlighten me?

Old GM Delco stuff was 10 ohm. A 'modern' radio should be able to drive those, might not get the volume out of them like a 4 ohm speaker, not really an ideal combination. You can't run 4 ohm speakers with the old radio unless you use an amplifier.

thanks for the info - I may just leave the old ones in there for now until i decide if i want to update the stereo with a modern unit. adding an amp is not for me

Adding an amp isn't too big of a deal these days. When my wife had ger '89 Suburban I added a small amp so we could use the stock radio but with better speakers. The amp was maybe 50 watts and about 6 inches by 4 inches, easy to hide in the dash...

like this https://www.crutchfield.com/p_158XMS400D/Sony-XMS400D.html?tp=115

Might go that route later. Already sent speakers back and really want to fet my door cards back on already. Fiberglass is so fun to work with