Tweeter as my surround??

Just what range does this tweeter cover? A midrange would be much more practical as the tweeter likely only covers the musical overtones at this size. One of the full range drivers would be the best choice if you wanted to stay small. I think you would be surprised at how little energy the tweeter actually supplies.

@ stanwal thanks for the the info.maybe ill try your suggestion.im still searhing for really small surrounds but sounds big.(something like cube?)

While most people use smaller speakers for surrounds, the laws of physics still apply. So, if you want to expect any bass with any decent output levels, you cannot use just a tweeter or any minuscule speaker.

Kal

there are light cans with hidden speakers built in, thats how I would go

How about Gallo Micros or Mirage Omnisats or Energy take 5? That's as small as they come. You will need to set the crossover for the surrounds rather high to make up for the bass and let the sub do the work.

Feh.

I saw Pyle PRO PCB4BK 4" speakeras in tiny boxes, just large enought to contain the driver and should be easy to conceal. And much better suited to surround duty than any tweeter, as previously stated. "These speakers were perfect as surround sound speakers, I would not use then as the main speakers in a system. Bass is usually lacking this this type of speaker, so this is no surprise to me. But for the low price and the power capabilty they are a very good choice. The only thing I would have likes better is if they were polypropeline."
~$30 the pair! Good luck.