best power conditioners under 4k


Hi folks, i want to buy the power conditioner under 4k demo, what it the best option, any suggestion it good! thanks!!
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Hi chorus: +1 on the Puritain PCM 156. Audiogon member Wig  (whose opinion I regard) sold his Inakustik unit to buy one of these for a lot less money. Wonderful conditioner. So far, I only use it for the front end components. 
Hello all 

So I went with IsoTek evo3 sigmas conditioner, and am happy with the unit. 
Clearer TV,  Noticeable difference in sound quality. 
I am trying a Vibex currently. Certainly bests a Shunyata that I tried recently that retails for over $ 5K.
Overwhelming choice is an ADD-Powr Sorcer X4. Next choice is an X2.
Finally a Wizard.