Neotech NC-P313 vs. Furutech FI-28 Plugs


I am going to be constructing a power cable and wanted some advice. I had Wattgate standard power connectors on my power cable and they didn't sound too good. I upgraded them with cheap Sonarquest pure copper plugs (at least that's what they say they are), and the positive effect of these plugs was instant and profound! 

Having the Sonarquest plugs make such a HUGE positive difference, I was wondering if upgrading to a Neotech or Furutech would be worthwhile, since they are better made than the $11 Sonarquest plugs? I am trying to decide between these 2 models of plug. I ALSO, wanted to know if the FI-28 is the same as the FI-46, but with a different body?

If anyone can help me with this, who has tried any of these plugs, that would be great!
parimento1
a note on Wattgate.  These are decent bargain plugs, but they are made from brass which imparts a harsher tone.  I found that Wattgate brass tends to "push too hard" on the voltage and the sound becomes too forward and bright and harsh (in a way).  The Furutech gold/rhodium or Neotech do not have this problem (they are pure copper with plating).
I own both the Furutech Fi28R and the 50NCF, and also the Wattgate plugs. The Furutech are definitely a step up, but they may not be a better solution to your particular needs. The Furutech tend to clamp harder on, or into, the outlets than the Wattgate's...which IME can also lead to problems.
Nonetheless, the Furutech are a nice upgrade and as posted above, the Fi28-R's are an exceptional plug...the rhodium plating really gives great neutrality. Not quite as extended as the NCF-50's...but excellent regardless.
Hi guys, thanks for your input! The Wattgate plugs, as you guys have said do sound harsh and unnatural. 

I am leaning towards getting the FI-46(Gold) or 48 (Rhodium or Silver), due to the NCF treatment. Which one would be the most neutral?? I know the previous poster said that the Furutech gold treatment significantly warms up the sound. 

I am still contemplating getting the Neotech plugs, because of the price difference. 


Also, it seems from your post that Rhodium sounds more neutral than the other platings. Ironic, since Rhodium is a comparably poor conductor of electricity compared to gold or silver. 
Furutech hardly makes any silver plated models, but i do see the FI-48 Male comes in silver.

For "neutral" I would probably say Rhodium.  The Furutech gold-plated is colored in the sense that it softens the highs and also slows the bass.  Silver is also not neutral because it tends to push the upper mids and highs and sound bright with lack of bass.

I have found that Rhodium actually has better ultra-high frequency response and extension than silver.  I read once that silver does not do a good job at dampening electrical resonance and that's why it sounds so bright.  Because it's resonating, it cannot stabilize enough to provide clean very high frequencies.