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REVIEW: Viborg MBU1501 Power Cord Cable

76.87.201.57

Posted on December 15, 2021 at 09:03:16
Jon L
Audiophile

Posts: 5867
Joined: April 6, 2000
Model: MBU1501 Power Cord
Category: Cable
Suggested Retail Price: $127.00
Description: Spiral Super Litz
Manufacturer URL: Viborg
Model Picture: View

Review by Jon L on December 15, 2021 at 09:03:16
IP Address: 76.87.201.57
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for the MBU1501 Power Cord


*Shoutout to Duster

Having made numerous DIY power cords over the years, some excellent some mediocre, it's nice to have a pre-made commercial option that offers tremendous performance to price ratio in that DIY spirit. Viborg MBU1501 uses very unusual build materials with proven-from-experience sonic qualities associated with these attributes. Analyzing from DIYer's perspective:

Solid core copper conductors

Viborg uses 7 different AWG solid core copper conductors, 16 in individual litz configuration. IME, solid core copper tends to yield a more dense, robust sound, especially in the midrange. Check. Finely stranded copper can sound airier in treble but often does not have the same clear, dense midrange. Viborg does sound a bit less airy or velvety at the very top, but only when compared to very thin ribbon conductors (i.e. Omega Mikro) or lower AWG silver conductors.

Teflon dielectric

Each solid core strand is encased in teflon, which is a difficult configuration to find in DIY world. Tinned copper or silver-plated copper is the norm, usually stranded with the associated sound signature of their own. Teflon directly on solid core copper tends to increase the sense of clarity, detail, albeit sometimes at the cost of "too-revealing" or "ruthless" mid-treble/upper-midrange for poorer recordings. Those looking for a more laid-back, "smoother," relaxing sound should look elsewhere.

Shielding

Viborg has 100% copper shielding. When I make DIY cords, I often make both shielded and unshielded versions, often experimenting with varying the distance between shield and conductors. Most of the time, I prefer unshielded versions which tend to a stronger sense of sparkle, air yet being smoother. Put a shield on it, and low-treble/upper-mids become more prominent therefore seemingly more detailed, yet the sense of effortless air and sparkle at high treble decreases. Viborg hits a decent balance here, leaning toward detailed, forward mids, but I would like to try a version without the shielding for comparison.

Lack of PVC

Viborg does not use PVC in construction. IME, PVC blurs transients and detail. Viborg uses polyethylene to separate the two conductor legs and also to separate the legs from shield. Then using teflon as primary dielectric, we have no blur or slowness. Check.

Helix Geometry

DIYers will argue forever about which geometry is superior in which cable application, etc. Until I can try this same cable in different geometries, there is not much to say about this right now. However, compared to certain high-AWG star-quad designs, Viborg seems slightly less in level in the true sub-bass. But this has the effect of making what's above it (upper/mid bass) sound more taught and punchy, great for modern music.

Conclusion and Wishes/Wants

For the price I paid on sale, I do not believe I can buy a commercial cord or build a DIY cable that can outperform the Viborg MBU1501. If your system and tastes lean toward above description, Viborg will embarass many high-dollar audiophile cables. For those tube guys, the Viborg reminds me a lot of sonic character of Takatsuki 300B tube, detailed, vivid, dynamic, and rich. If I could order a custom cable from Viborg, I may want to try something with foamed-teflon dielectric instead of solid teflon, solid core silver instead of copper (not for necessarily "better" sound but for different signature and system tuning), and version with no shield. But who knows if that special version would actually be superior?



Product Weakness: Slight lack of air and refined smoothness
Product Strengths: Detailed, vivid, dynamic, and rich


Associated Equipment for this Review:

Amplifier: see inmate system
Preamplifier (or None if Integrated): see inmate system
Sources (CDP/Turntable): see inmate system
Speakers: see inmate system
Cables/Interconnects: see inmate system
Music Used (Genre/Selections): see inmate system
Type of Audition/Review: Product Owner


 

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Photos, posted on December 15, 2021 at 09:05:56
Jon L
Audiophile

Posts: 5867
Joined: April 6, 2000



photos

 

Internal Photo, posted on December 15, 2021 at 09:06:41
Jon L
Audiophile

Posts: 5867
Joined: April 6, 2000



internal

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on December 15, 2021 at 09:11:13
Mick Wolfe
Audiophile

Posts: 2920
Joined: October 10, 1999
Contributor
  Since:
September 4, 2000
Nice review Jon. Pretty much matches my experience with the Viborg. An absolute steal considering what most hi-end cable manufacturers are asking for a power cable these days.

 

RE: Photos, posted on December 15, 2021 at 14:01:07
blake
Audiophile

Posts: 795
Joined: May 25, 2000
A very high value cord indeed. I originally built a few Viborgs myself using raw 1606 and the VM/VF 512 unplated copper plugs. Had them cryoed as well.

Those are very good as well but tried the pre-assembled 1501 (again with unplated connectors), had it cryoed as well, and it is better than my DIY 1606's. So bought a few more of the assembled 1501's.

I think you'll have to spend some serious $$$ to better these, especially if you have them cryogenically treated. I loaned out one of my DIY 1606's to a friend and he felt that did not give up much, if anything to a Nordost Brahma on his Bryston 14B 3 Cubed Stereo power amp. And, as I said, the 1501 is better.

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on December 15, 2021 at 16:32:25
xsb7244
Audiophile

Posts: 382
Location: Hawaii
Joined: May 17, 2011
Kudos to Mick Wolfe for bringing Viborg MBU1501 big bang for the buck cable to our attention. And thanks to Jon L for detailed review.

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on December 16, 2021 at 10:51:42
Mick Wolfe
Audiophile

Posts: 2920
Joined: October 10, 1999
Contributor
  Since:
September 4, 2000
You're very welcome xsb7244. Although we're sitting here in the Cable Asylum, I'll pretend we're in Tweaks and mention the Nobsound spring loaded isolation footers. Yes, also available at Amazon for $33 a set.(4) Very + results here. Maybe not quite as stunning as the Viborg's, but close. As always, YMMV, but they're almost free to try.

 

Nobsound, posted on December 21, 2021 at 21:34:31
Jon L
Audiophile

Posts: 5867
Joined: April 6, 2000
What kind of equipment are you having success using the Nobsound under?

 

RE: Nobsound, posted on December 22, 2021 at 08:28:39
Mick Wolfe
Audiophile

Posts: 2920
Joined: October 10, 1999
Contributor
  Since:
September 4, 2000
Jon...the experiment continues with me concluding they're somewhat more effective under lighter components. I did not like them under my 75 lb. LM 218ia. Here's where I used 4 under the trannies and 1 up front. Couldn't match what my Mad Scientist Black Pod footers do under this amp. Yet they show promise under both my Latino ST 70 and DenaFrips Ares DAC. Also, they have quite a bit of tuning potential in that you can remove a few of the springs to better match a components weight. So as of now, I'm trying to determine if a stiff or bouncy set up yields the best result. Bottom line, certainly worth a shot for around $33, but start with just one set and buy the aluminum version. FWIW, my benchmark for comparison remains the IsoAcoustics Orea footers.

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on December 25, 2021 at 06:18:05
AudioKnob
Audiophile

Posts: 17
Location: Omaha
Joined: March 12, 2020
Jon L

You should consider publishing an enchiridion on cable materials, construction and sound variations therein. Fascinating write-up, JL!! Thank you ... fine work. BTW might you know of a vendor offering bare, silver-plated cable? Can't resist: one more question. How would cryo treating the cable in question resolve itself to the average listener? Thank you, again!

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on December 26, 2021 at 07:41:06
blake
Audiophile

Posts: 795
Joined: May 25, 2000
"Can't resist: one more question. How would cryo treating the cable in question resolve itself to the average listener?"

See the recent thread on cryogenically treating cables.

Blacker, quieter background, more refined & extended high frequencies, more resolved bass and more detail retrieval in the midrange.

 

How stiff are these?, posted on February 25, 2022 at 15:28:16
The Killer Piglet
Audiophile

Posts: 4693
Location: FL
Joined: January 2, 2002
The item description in Amazon says they are not flexible, but that is relative.

How would they compare to a Bob Crump cord or Oyaide Black Mamba, for example?

thanks

KP

 

RE: How stiff are these?, posted on February 25, 2022 at 16:39:27
Aspheric
Audiophile

Posts: 156
Joined: March 12, 2001
Don't know about the Bob Crumb cord, but the Black Mamba V2 is a lighter power cord that is flexible. The Viborg 1501 is a power cable that is somewhat flexible. I would not call it stiff by it's turn radius of about a foot for a complete circle.

Just added a 1501 to the power conditioner. The sound stage is now deeper, wider, more detailed and musical. The character of the sound is enveloping and relaxed - a substantial improvement.

After testing around my system the cable seems to shine with power equipment, like amplifiers and the power conditioner. Quite a find at a reasonable cost.

 

RE: REVIEW: Viborg MBU1501 Power Cord Cable, posted on February 26, 2022 at 12:10:04
xsb7244
Audiophile

Posts: 382
Location: Hawaii
Joined: May 17, 2011
Please note on Amazon there are two different Viborg MBU1501 using different connector.

2M $189.90 connector VM501 + VF508

2M $149.90 connector VM502 + VF502

 

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