I love Dakiom. I bought the cheapest one he had for 6-channel rca lines. Dakiom no longer stocks the unit. It is model # HR103. I bought it along with 6 Y connectors and I believe I paid $80 for all of it.
I hooked it on back of my emotiva umc-1 between it and the emotiva xpa-5.
I recently decided let me try my sytem without the DAKIOM. Here is my honest opinion: For about 2 songs I was like I think I like it better with it off. I did notice a difference, at first, honestly, I thought it was a change for the better but very soon by the third song or so I noticed listener fatigue and within 10 minutes I placed the feedback stabilizer back on and was contacting Dakiom for a second f.s. to apply on the amp.
With it off: The highs on my system sounded very jittery, which to me means very unclear and overwhelming. Also, much of the soundstage was gone. The Dakioms have a way of making the sound seem to "pop-off" from the speakers.
With is on: My speakers high-end and midrange seems much more tame and "musical" like Kim explains in his rants. The sound is also much more spatious and the instruments seem much more distinct and seperated.
This is with his lowest priced unit. There is still a little more I believe that could happen to my system with an amplifier stabilizer and I plan to purchase one soon.
My opinion: Dakioms won't change your speakers ability, that is, you're speaker is going to have it's sonic characteristics as usual. It isn't going to change a crap speaker into a great speaker but what it done for my speakers is made them more enjoyable, less fatiguing, much better soundstage, and tamed the jittery highs and made them much more smooth and soothing. Still, these are very bright speakers, and the ONLY way I will listen to them is with the Dakiom unit on.
For all the naysayers, I believe in these things. I would not listen to anyone who bashes these things until they personally try them. Trust your ears, I really believe these things are worth their money.
Can't wait to test out the amplifier stabilizer. Does anyone recommend the HA203, HA253, or HA263? Any input is greatly appreciated!