tweeters on surround?

[manofsteel2397]

hi was thinking of upgrading my surround speakers now i dont have a lot of money so not going to buy expensive speakers but i currently have a set of pioneer 4" speakers for my surrounds and my front and mains are infinity alphas now i was thinking of getting the infinity primus 140s for the surrounds they have a 4 "speaker as well but also have a tweeter would the tweeter make that much difference in the sorround speakers?

 

[Joe Schmoe]

The primary purpose of surround speakers is to provide directional cues. These cues are often high frequency, so a separate tweeter would be a definite improvement over a "full range" cone.