Does the polarity/orientation matter when using these?
1567286
Yes it seems to. And I've only had luck attaching it one way... with the silkscreened side up.
1567287
Yes it seems to. And I've only had attaching it one way... I use it any way and i haven't has a problem
1187704
Usually the center connector is Positive. Use your DMM to determine the polarity.
2002057
The base is the same. Two things to watch for are the top of these are slightly larger than the incandescent version and they are polarity sensitive.
215541
I have no problems at all with these speakers. Make sure you get the polarity correct or you'll lose your bass response.
253031
Plug is not polarized; it can go either direction in the outlet. The plug size is not a problem; I am able to plug other things in the other outlet.
1516778
I actually returned the pair I got because.they didn't seem to make a difference for night driving. I don't remember if they were polarized.
621668
I tried 15+ minutes, usually 2 AA or 2 AAA batteries. Not sure polarity matters, it just reverses rotation direction. I tried 5V but it makes it really hot.
253032
No, the plug is not polarized. It can plug in either way. This plug is high quality and has been working great for the last six months for me! I use it daily.
1854699
Sounds like they are mismarked. The polarity cannot change through the connector. The two + now become 1 +. The two - now become one -. Once you have the 2 panels connected in parallel, use a voltmeter to check the polarities to prove it to yourself.
1731167
Note that the plugs are all polarized. If you are plugging in cords w/o grounds you have a 50-50 chance of trying to insert the plug backwards.
973400
The plug is not polarized because the appliance itself is not polarized. I think this mixer was manufactured long before polarized appliances became common. If your present cord will plug into the appliance either way, it does not require a polarized plug.
958564
I can't answer, I threw them away after reading from a few reviewers that the polarity is switched (neutral and common wires are backwards.) I suggest you seek out an alternate item just to be safe.
1088614
I don't see any mention of "reverse polarity" in the product descriptions. Works fine in my airplanes.
714824
Center-tip-negative polarity is not the norm, easier to buy one here. You'll see one in the "customers...also bought" links--e.g. Planet Waves 9V Power Adapter, which has the polarity you need. Just make sure any adapter you use is "center tip negative".
1618220
Polarity does matter, but the wire colors have changed from batch to batch (I've ordered several pairs over the past few years), making trial and error the only way to tell which is positive and which is negative. There is no harm hooking it up backwards, it just won't work until hooked up correctly. I have only had one break a wire internally (after crashing the dirtbike and breaking the mounting screw, it dangled by the wire for several miles before we noticed it.) Once home, just took it apart and re-soldered the wire to the board, replaced the broken screw, and back in business again.
2224281
The previous answer is excellent. I would add only that the polarity (red vs. black) is not as important as speaker manufactures imply that it is. I doubt that most listeners could detect that one speaker is 180 degrees out of phase with the other. Nothing breaks if the polarity of either speaker is backwards.
559083
It is polarized, I just checked. You can barely tell the difference, but they are. And they are well-made.