I found a couple of Harman Kardon 15v. 1.1 amp speakers at a second hand store, but they didn't have the power cord/transformer with them. I thought it would just be a standard size in to the back of the speaker, but even Radio Shack didn't have an adaptor to fit. Do I have to go to Harman Kardon themselves, or is there another way to power these things, or an adapter that would fit?
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You can certainly try replacing the capacitors, they should have the values written on them, but be aware they are glued/epoxied as well, to reduce vibrations.. My supply has also failed - after verifying that the speakers were otherwise functional (using a 19v supply and 16v regulator, which got pretty hot)), I ordered a new one from ebay for $26 shipped.
Hello It seems that the power supply section of your speaker systen has the fault. Check the fuse inside it. If it found blown out, never replace an other fuse in place. Check the power supply circuit board for any short circuited components in it, before replacing an other fuse.
Check the power-connector on the speaker for the rating:
* AC versus DC
* 4.5 versus 5 versus 9 versus 12 versus 18 volts
* 0.5 versus 1.0 versus 1.5 amps
* pole-negative-ring-positive versus pole-positive-ring-negative
Try the local "Thrift Stores", once you have the specifications. You may get the correct suppy for less than $5.
Do you have a Radio Shack or other consumer electronics store in your part of the world? If you can find a non-bigbox type of electronics store, take the old power supply in and have them match it (power output and plug type). Good luck.
Wow, this was a hard one. I called both Harman Kardon and Dell, seems HK made the speakers for Dell, but neither company carries parts any more. I called Radio Shack thinking they would have a generic power supply, not even close. I looked at several places on the internet and had no luck. I do have a little good news, I was able to find a few on Ebay, so if you don't mind buying used, you can get a power supply there. They even have a Buy Now offer so you would not have to bid on it. The power supplies are listed as 1100mA which is the same as 1.1A. Also, if you get the it and the plug in is not the right size, take the speaker to Radio Shack and they will be able to sell you the correct plug, all you will have to do is splice in the new plug. With it having an AC output, you don't even have to worry about the wires being crossed as you would with DC. Hope this helps you.
it comes with ur desktop speaker harman kardon hk 206. it is a 12v 1A dc power supply. u can use it in any equipment which needs that power rating. only thing to remember is, check the polarity of both before connecting.
Hey, I was in the same situation. I tried a 9V DC (yes DC) converter I had and it works perfect. You can use a DC on a AC input - never the other way around. Due to insufficient power I get distortion at very high volumes... but I never play that high so I'm good..