Running a car stereo at home?

Question

I want to mount a Marine stereo using a 5A 12v power supply on the outside of my garage with speakers throughout the yard. I have out door speakers (8 ohm) but car/marine audio is designed to run 4ohm speakers. Can it be done?

Answer 1

Yes.  Your Marine unit can run the 8 Ohm speakers.  Make sure the speakers are rated to handle the increased power.  (When you step down to 8 Ohm from 4 Ohm, your radio will make 2x the wattage).

Answer 2

Should work fine.  You may not get the output like you want because you're running a higher impedance load than the marine amp is designed, but that's fine.  Think about this: it's running a higher impedance load, so that's more resistance.  You shouldn't blow anything up, and that's a good thing!

Answer 3

It will work but you are going to be limited to one or two speakers on each speaker output of the stereo.  If the unit is designed for two 4 ohm speakers (total) then you can connect two 8 ohm speakers to each channel (four 8 ohm speakers).  Any more than that may overload the stereo.