Do receivers output DC power to speakers?

[Gunslinger08]

Thinking about hooking up my car subs to my receiver, just for sh!ts and giggles. Do receivers output DC?

 

[glen]

no
Your amp puts out AC which alternates at what ever frequency you are playing.

 

[Colt45]

ac, foo

 

[Trygve]

Not unless there's something seriously wrong with them.

Note, however, that car speakers generally have a nominal impedance of 4 ohms rather than 8.

 

[Lithium381]

there shouldn't be a problem, i was under the impression they all output the same way.....someone prove me wrong on that, i've hooked my sub up to my receiver in free air when i bought it just to make sure it wasn't jacked.....and it went fine....as noted most subs are 4 ohms and the receiver "expects" 8 ohm, it shoulnd't be a problem if it's a fairly decent one. Keep in mind also it won't be quite as loud due to the natural 6db boost you get for being in a car(not sure why it just happens) have fun and no worries!

 

[Harvey]

Do receivers output DC power to speakers?

Not if they're working correctly. The lower impedance should not have much effect on a decent amp, but it means your amp will be putting out twice as much power as it would into 8 ohms. Most manufacturers publish performance specs at both impedances.

P (power) = E (voltage) ^2 / R (impedance).