That was also my observation with the FI32. The FI52 ncf removed the harshness in the sound. At first, I thought it was the UNI, which added a harsh tone to the highs. It was just the connector. I’m very pleased with the improvement from the UNI. No hum and no restrictions whatsoever; in fact, the sound is even improved.
I bought the new Bon Iver CD yesterday.
Hadn’t listened to any music for a while so this was the first.
The former noted harshness seems to have gone.
The music was very dynamic, it appeared louder for a the usual volume setting.
The bass was deeper, I actually went over and checked to see if my two subs were on, they weren’t.
There’s a magnificent song on the CD, for me, his best ever, If Only I Could Wait, worth the price of the cd for that song alone. Check it out on YouTube.
Overall I’m very happy with the Uni 16.
It can only get better when the Furutech NCF connector arrives and replaces the Wattgate connector.
Looking forward to it.
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I finally received my Furutech C19 NCF connector today.
(I had to wait on new stock coming to the UK from Japan.)
Got it connected to the power cord feeding the Isotek V5 Syncro Uni, replacing the Wattgate I was using as a temporary ‘tide me over’ connector.
It’s only had a few hours use but I played 10CC Greatest Hits to check progress.
With the Wattgate connector this CD sounded, artificial, unnatural and electronically processed, easily the worst sounding album I’d played with the Wattgate connector in service.
With the Furutech, even with just a few hours on it, natural, vocals very clean and clear, extended treble, fast bass lines.
It felt like I had my system back.
I’ve been watching a lot of content via the system, (dual home theater and music), as I find video is not as critical for enjoyment as music is and I couldn’t listen to music knowing it sounded sub standard.
With a music system everything in the system must be top notch or you hear the failings and that’s were upgrades come from, to try to resolves these..
The NCF connector is the final piece of my puzzle.
I should be able to hear the V5 Syncro Unit improvements clearer now.
These are more volume, better bass, blacker background.
I have the Isotek before my P20.
The train of thought is that there shouldn’t be anything before the Regenerator but that is dispelled by upgrading the power cord, which we all know improves the P20 performance so adding the Isotek before the P20 also improves the P20 performance.
By next weekend the Furutech connector should be pretty much burned in as it should have about 200 hours on it, but already I’m happy with it, a big improvement over the Wattgate.
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I have replaced all my cheap PCs with NCF connectors too, they for sure make improvement over any stock or aftermarket plugs that I have tried.
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It’s great to hear that you’re noticing similar differences in your system as I am in mine. I also think a P20 benefits from a power supply without any disruptive DC components. I’m thrilled with the results of the IsoTek EVO5 Syncro Uni 16. I’ve noticed only a positive effect, without any compromises in the sound quality. The Furutech FI-52NCF makes a good job. The sound is smoother, without any artifacts. I mean, after a few weeks, the soundstage is even bigger, smoother, and never tiring. I’ve been completely happy with my system for a long time, after many modifications and optimizations. Regards Andreas
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Happy Cake Day Andreas!
Cannot try all the tweaks you mentioned anymore since none of them are made in US, not for the next four years anyway (hopefully not longer). 
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Thanks, Donald. I hope this crazy world calms down soon.
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Happy cake day, Andreas!
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Is here anybody who use V5 “sync uni” before Aquarius V5.. I bought Aquarius because I had unhearable sound quality at mornings amd I hear hum (what sometiames louder) from my amplifier. My sound quality problem wanished into thin air. But the hum stay with me…
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The Aquarius apparently doesn’t have a built-in DC filter. IsoTek also recommends the Syncro UNI 16 as a supplement. I have a Furutech Vault power strip and the IsoTek V5 Syncro UNI 16. Previously, I also had a hum from the amplifiers that varied throughout the day. Now it’s completely silent, and the sound overall benefits from the UNI 16. The IsoTek V5 Syncro UNI 16 is a clear recommendation. A huge improvement at a comparatively fair price.