can these work passively
513540
Unfortunately no. The sound is fantastic though and the controls on the ear cups are handy.
1295938
No. You have to hook them up to a switch or run them off another power source.
1563542
I would say no, but it really depends on how much power youre putting to them. Its cheap enough to try. And fairly reliable.
93995
They claimed to be active. However, the one I received was passive. Be leary of who you purchase these from. Seems many people are trying to pass off passive adapters as active ones.
2228235
yes they will work, but the controls for pause, forward and repeat may not function.
1404823
No. You would need a received or amp to power them. You can get a cheap one for about 40$.
53184
No, but they can be operated via their included battery. The trade off is you can't "daisy chain" or "network" them together so they all chime if one goes off.
1365876
Yes, they are. You cannot run them passively, though I don't know why anyone would want to. Anyways, it is both a "plug and play" and an airplay audio solution.
455458
Yes, these are passsive (non-powered) speaks, so you will need an amp or receiver.
808287
They will work but will not be very loud. you buy an amp with higher power for better sound quality.
1408638
They do not have amps in them they are passive, you need an amp. but they will handle 400 watts.
841589
I don't think they are designed for that but if you were to bypass the controller and checked to be sure the applied current was correct it would probably work. Just a guess.
2084043
These are passive speakers they require an amplifier(which may have bluetooth capability)
680084
These do not connect to line voltage. They are passive speakers, which means they are driven by an amplifier. So you can use them anywhere you want.
1074015
I have never used them in that capacity. Subsequently, I am unable to answer your question.
1139307
no,i would run the speakers without a passive crossover don't change nothing it'll work fine you donot want to take from the normal pure quality
1100912
Sensitive enough I guess. They are kinda small though, but if they are properly mounted it may work. See if there is something like this out there already for what you want to do.