Diy interconnects RCA connectors.

1donskee,
I've tested all the different Sonarquest plugs and the silver plated ones,on my system,seem the best. I've done comparisons on my Emotiva powerstrip main cord as well. This cable affects all the other components that are plugged in to it as well. I can say this,I wouldn't believe ac connectors could make a difference if I hadn't done these test on my own. It just doesn't make logical sense to my reasoning mind. But I can hear the subtle differences. And I've done tests which involve other people listening as well. Once I point out what to listen for on a particular song,they could hear the differences.

The silver ac connector is the most extended and "airy". The bass is slightly deeper and faster, with more overall impact. The soundstage is bigger overall,but maybe slightly less defined when compared to the copper. The rhodium soundstage is closer but the sound is not as dynamic or extended. I like the copper better than the rhodium. The gold is rounded and smooth. It seems warmer in the bass and mids. So my conclusion is,for the best overall,the silver wins. But if you're trying to tame a brighter,edgy system, the copper will be better. The copper soundstage is the best in 3d imaging but just slightly smaller than the silver. The gold is close to the copper,but the bass is not as good. The rhodium is neutral,but to me,a little "bleached" and cool sounding. The power cords,and connectors,even affect the sound on my Sony Bravia tv speakers a bit. Why,I don't know.
If you have the money,try buying silver and copper Sonarquest and do a mix. I have three main components,amp,pre-amp,and cd player. The pre-amp and cd player are plugged in to the Emotiva powerstrip. The amp is direct into the wall. Plugging the cd player,or pre-amp,directly into the wall,also changes the sound slightly. It seems to reduce the treble a bit. Like going from the silver to the copper.

Since I've written about my experiences,I changed speakers. I went from the Energy RC-70 to the SVS Ultra Towers. The SVS towers are notably better in most areas. Although,the midrange on the Energy RC-70's were slightly richer,it's the only thing I'm missing. But the power cables differences are more noticeable on the SVS Ultra's.

Thanks for your response.  It sounds like your impressions haven't changed since 2 years ago when you wrote the other review.
Now I need to find the Emotiva power strip

@dayemo
Did you have a chance to try Hybrid (Silver-copper) Neotech NEI-3001 MK III wires? If so what is your thought about it?
thanks...

@Michelzay, I have the Neotech Nes-3004 copper speaker cables. And I'm using Neotech upocc copper solid core wires in my handbuilt interconnects. My experience with silver plated wires wasn't to my liking.I've used 24k gold plated copper occ solid core wires also. In each case I noticed the soundstage was somewhat muddled. The silver plated copper was worse than the gold plated copper. The same could be said of the Audio Metallurgy Ga-0 interconnect,which uses a alloy of copper,silver,and gold,single proprietary wire. There was a loss of detail and a less defined soundstage. And the silver plated copper could get harsh when I raised the volume for hard rock.

I've come to believe that a combination of solid core silver and upocc copper wires are the best to my ears. About 55% copper to 45% silver seems to be a good balance on my system.And the overall awg should be around 19. Silver tends to sound cold,and the bass can get thin sounding with little impact. So you need enough copper to keep the bass impact and also the lower midrange warmth.
The NEI-3001 mkiii might be easier to build than mine,but I doubt they will sound better. I've had many shielded interconnects and they all sounded restricted,boxed in,as opposed to open and airy. I'm a believer of the less insulation around the wire,the more open and flowing the sound principle.

@dayemot 
It is very interesting what you did. The only Neotech solid core copper that I am aware of, is NEP-3200 (being a power cord). I was wondering is there any Neotech SOLID CORE copper interconnect cable? Actually I am a fan of Solid core cables, that's why I like to learn more about it.

Regarding Hybrid cables, I use Neotech NEP-3003 MK III, as a power cord (!) with a great result. It is very detailed, dynamic as well as fantastic 3D soundstage where one may spot placement of each instrument in a big orchestra. It is much better than Furutech Alpha-3 and Fp-s302N. 

That's is why I am more interested toward Neotech HYBRID NEi-3001 MKII in order to make some interconnect cables with. The question is to use KLE or Neotech connectors?