First of all, I'd like to thank Watchdog for organising this tour and allowing me to spend a couple of weeks with Neutral Reference I USB cable.
The setup used for this evaluation consists of a SOtM sMS-200 (powered by the UltraCap LPS-1 from UpTone Audio) feeding the JOB INTegrated. Speakers are a pair of Aurum Cantus V3M. The size of my listening room is approximately 3m x 3.4m, but due to layout, my speakers are placed along the long side of the room. Listening distance is approximately 1.6m away (relatively near field). Music is played via a usb powered hdd attached directly to the sMS-200.
Impressions:
The built of the Neutral USB is excellent. The construction is sturdy and solid and despite having a solid core, was quite flexible and easy to route. The bright bumblebee yellow is also extremely eye-catching and certainly commanded one's gaze!
Having a name such as 'Neutral" is a little misleading as I do not find the Neutral USB to be neutral sounding (having a flat and reference-like sound). Au contraire, it was vivid and lively, yet retaining a smooth and silky signature. Vocal image is rather big and very slightly more forward sounding, which gives vocals intimacy. The smoothness of the vocals also made me forget that it's a silver cable in its core as there was no brightness/harshness at all. It also never sounded clinical, dry or lean, traits that often get associated with silver cables.
Apart from having an outstanding midrange, bass is also good. My speakers do not extend that low so I cannot accurately determine how low the Neutral USB extends, but it seemed to me that there was slightly more energy in the mid bass portion, making the bass slightly rounder and more 'fun' to listen to. Despite the slight bloom, bass was still punchy. However, due to my inadequate room treatment, the bloom at 60hz and 100hz is very noticeable and in my setup, worked against the Neutral USB instead of for it. YMMV.
The top end extension for the Neutral USB never gets sharp and is quite refined. My speakers have ribbon tweeters and incorrect pairing will easily result in ear-splitting treble, which I had in the past. I have since avoided silver cables like the plague, but the Neutral USB really showed that good silver cables aren't the bright, scary monsters that I thought they were. I would love it more if the treble was a tad sweeter and slightly more extended.
Soundstage width on the Neutral USB was wide and expansive, though I would prefer a little more depth. Again, this is personal preference as my listening distance is quite short, so cables that added depth are greatly appreciated.
Despite its smooth and lush signature, the Neutral USB is very transparent and has very good resolution. Background is pitch black and details come forth effortlessly. However, it did get slightly congested during complicated passages. Attack and transients were also not fast as I thought it would be (another silver characteristic assumption), and leading edges were slightly rounded. If you're looking for an explosive, fast and dynamic USB cable, this would not be the cable for you.
In conclusion, I feel that the Neutral USB is a pretty well balanced cable and very easy to listen to. A worthy contender if you're looking for a USB cable with intimate vocals and a smooth and silky tone, without too much warmness. It also made me more open to trying other high quality silver cables.