How would you compare Acoustic Zen to Nordost

I would like to know if anybody has done any comparisons between Acoustic Zen Silver Reference MK2 and Nordost Quatrofils with either termination.I use Quatrofils between my Theta Casablanca II and my Krell KAV-1500 Amp.I use Quatrofils on all my other components also.Which cable sounds better and why.I have Aerial speakers and listen to about 30% DVD and 70% music.I use Nordost SPM Speaker Wires;bi-wired.I'm 54 years old and I have a slight loss in the ability to hear some of the high tones;so maybe a brighter all silver cable would be better than Silver Coated Copper.Thanks Ambrose.
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I prefer the AZ Silver Ref mk 2's to the Valhalla's in most systems. To my ears, the AZ's combine the speed of the valhalla's, but they are more full bodied and have better extension down low.
I have compared extensively Quattro Fil with Silver Ref 1. In all contexts I prefered the Silver Ref (which were done with 2 different systems as well as using both cables at the output of a mixing board and comparing the cables via the recording created with each. Quattro Fil is to much to the dry side for my taste, and can lend to a sterile sound. The recordings I did with each cable confirmed that the Silver Ref is passing more info, all kinds of little reverberant details were lost through the Quattro Fils. Silver Ref is a brighter sounding cable, but not in a bad way, it pairs really well with the Satori or Hologram speaker cables which tend to be a bit warmer sounding. I have also used the SPM speaker cable and feel that it is bested as well by the AZ cables. Others strongly dissagree with my opinion on these cables, so I would advise that you take AZ up on it's 30 day money back guarantee. I would also reccomend if you are interested in something else to compare the Argent Audio Jaden Signature or Pursang cables, I feel that they are a big improvment on either the Nordost or Acoustic Zen cables at a much lower price.
Acoustic Zen Silver reference is more punchy and boomy than Quattrofil.
Quatttrofil is more refined and smooth sounding.

Depends on your need. If you want something more exciting than maybe AZ is better choice.

However, there are still many cables out there.
I have compared AZ Silver and Matrix with Red Dawn and SPM, not the better Quattro fil. There is definitely a "house" sound to both ranges, so I feel able to comment. In fact my intro to Nordost was through one of the famous dems by Lars from Nordost at a UK Hi-Fi show. Very impressive it was to. It also gave a good impression of the changes between each level of performance. It was clear to me and others in the show, that the biggest jump was Red Dawn to SPM, but all had the same overall feel, lightning fast, but I find rather flat and tonally bleached. AZ, in comparison is richer, you might say coloured, but I find it makes music sound more musical, if that is'nt a tautology. There is a richer palete of tones, instruments and voices are more complex and interesting. It just sounds better dammit
I wouldn't use the Quattro Fil because it's not well-suited for fast digital sources. It's better for line level and phono signals. (That's why it's the one cable Nordost makes with a 5-pin din connection on one end to connect it to tonearm wiring.)
Why not use it? While most cables Nordost makes are fast like the SPM and propagate a signal at 99% the speed of light, the Quattro Fil lags behind at only 95%. Unsurprisingly, given its slower speed, its capacitance is 50% more than the SPM: 12.0pF/ft vs 8.2pF/ft. You don't want a cable designed that way for your intended use.
Acoustic Zen's Silver Reference mkII, on the other hand, is a good match for a digital source. It's fast, very musical, and highly detailed, especially in the upper mids through the high treble. For your application, given you have a mild hearing loss in the top octaves, it's perfect. You will never hear "too much" detail in the top and confuse that with coloration, IMHO.
Quattro Fil is old tech compared with Nordost's new Valkyrie (sp?) cable in the same price range.
Unlike many posters, I've actually had both cables - at the same time. My Arcam 92 has dual, I plugged one run of RCA 1m Quattro Fil into one output, and one run of RCA 1m Acoustic Zen Silver Reference Two into the other output. Both cables were well broken in, and terminated by manufacturer. Tested on a Sonic Frontiers Line 3 driving an EAD PowerMaster 2000 powering Revel Studios. Every thing is very well broken in. A-B'ing was simple, just change the input on the preamp using the remote.

In addition to this, at the same time, I purchased two pairs of each of the cable's XLR 1m versions (for biamping). Of course, it was harder to A-B with these, compared to simply changing inputs using the remote...

So, what did I hear? First, the cables are VERY similiar. They are both easy to like Essentially, the Quattro Fil had far better bass extension and decay in the low-end, less colorolation in the mid-bass, and far, far better decay on the high end. Its true that the Acoustic zen has more coloration - but please please please recognize that it is an EXCELENT wire and this is a minor difference. I definitely would NOT say they were warm, colored, etc...they just weren't as neutral as the Quattro Fil. I tested this using a couple of well-recorded classical CDs, as well as on some modern pop.

I sold all the Acoustic Zen and kept a much more expensive Quattro Fil setup...until I purchased Discovery Cables for my new single-ended tube setup. have to try these...forced me to put my Quattro Fils up for sale.

With all this said, I sold my Red Dawn II speakercables and put in Acoustic Zen Hologram II double barrels. A bit difficult to deal with due to the thickness. However, they are outstanding values. I would have loved to put in Nordost SPM or Valhalla, but they were so expensive for bi amping, so I chose the Zen...great bang for the buck, 90% of the performance for much less. Also, after living with the ribbon cables Nordot makes, I will say they are VERY difficult to live with. They are very easy to kink and to expose the wires. Quattro Fil is far easier to deal with...I'll never own another pair of high end ribbon cables that dont have durable shielding.

Of course, I'm also selling Zen these double barrels, too, too, because of my new monoblocks that dont require I use 10' runs...Discovery cables, my new speaker cables, are soooo great...I didn't even consider anything else :)

Good luck and great listening!
Interesting. I started with balanced Red Dawn and Pro-Silway MkII off my EMC-1 UP, findng both a bit lean. Discovery Essence was better balanced, but didn't provide the lucidity of the top octave I was used too. A great deal on used SPM XLR did the trick: all Nordost's transparency but with a fuller balance. Liked it so much I then took advantage of 1/3 SPM list used pair pricing to upgrade the speaker cables as well. I haven't tried the Quattro, and probably never will, understanding that its genesis was prompted by a NY dealer who simply strongly suggested that Nordost come out with a shielded interconnect for the noisy Big Apple grid. (Hence the greater capacitance, and probably inductance too.)