Pass XP-20 DB-25 Umbilical upgrade: Has anyone any suggestions on how much of a difference and what brand?

spiritofmusic

Well-Known Member
Jun 13, 2013
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#3
Hi, I believe it's the DB-25 umbilical mean?
I don't own Pass, but I've just ordered a couple of these for my Nat Audio Utopia preamp <> psu.

The Tubulus Argentus DB-25.

I'll let you know how it differs from my stock Siemens cable.
 

spiritofmusic

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Jun 13, 2013
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#5
Will do.
You might want to reach out to Ihmeyer, he's done this very thing, and his positive report is the thing that swung me to go down this route.
 

BlueFox

Member Sponsor
Nov 8, 2013
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#8
Who knows, but it does. When I upgraded the DB-25 on my old Pass XP-20 I was amazed at the improvement. It works so well that Pass upgraded the cable and connector on the XP-22, which replaced the XP-20.
 

spiritofmusic

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Jun 13, 2013
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#9
Jahatl513.
Typo, sorry,
Ihmeyers is your man.
 

spiritofmusic

Well-Known Member
Jun 13, 2013
7,284
443
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E. England
#10
Keith, believe and anything is possible. Didn't your ma and pa say this to you when you were bright eyed and bushy tailed? Well, when you're a jaded audiophile, tweaks take on this function.
 

PeterA

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Dec 7, 2011
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North Shore of Boston
#11
Revelation Audio Labs DB-25 umbilical cord for Pass XP20 and XP25.

http://www.revelationaudiolabs.com/cables-power/#PassageDB-25

Bud's review here: https://forum.polkaudio.com/discuss...n-audio-power-umbilical-for-pass-xp-20-preamp

I used one of these on my XP25 phono stage and it lowered noise so that the preamp seemed to be more revealing. I think dynamics also improved slightly. I upgraded tot he XP27 and then sold the RAL cord to a friend. He uses it on his Pass active crossover. He loves the improvement.

Yes, Pass has improved their umbilical cords with the latest generation of preamps.
 

spiritofmusic

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Jun 13, 2013
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#12
Peter, there's been some criticism online that the Revelation doubled in price overnight when the Pass guys started getting interested in upgrading from stock. And some reports that cables have v long lead times.

The Tubulus Argentus DB-25 I've ordered (a pair) is about 60% cheaper than the Revelation, ready within 4 weeks, allied to marvellous customer service.

My system has already gone up a dozen notches in terms of resolution, so any meaningful drop in noise floor when the Tubulus are installed will be easily ascertained.
 

PeterA

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Dec 7, 2011
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North Shore of Boston
#13
Congratulations, Marc. I hope you find success. I'm sure there are many options.

I was asked to chime in with my own experience, so I did. I no longer have the need for such a product. I shared a link to BlueFox's excellent report in case anyone is interested in reading it. I'm sure the OP will read this thread and appreciate all of the suggestions and information contained herein.
 

spiritofmusic

Well-Known Member
Jun 13, 2013
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E. England
#14
Sure Peter, one great virtue of the forum is hearing of such things and possibly making great discoveries.

I'll know soon if this is one of these opportunities when my DB-25 cables arrive.
 

KeithR

VIP/Donor
May 7, 2010
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Marina del Rey, CA
#15
Peter, there's been some criticism online that the Revelation doubled in price overnight when the Pass guys started getting interested in upgrading from stock. And some reports that cables have v long lead times.

My system has already gone up a dozen notches in terms of resolution, so any meaningful drop in noise floor when the Tubulus are installed will be easily ascertained.
$800 :eek: Funny how no mainstream cable company sells DB25 cords w/ $15 connectors.

"The umbilical cable upgrade far surpasses the performance enhancement of a complete component replacement." - uh, sure mate.

All this black background, reducing the noise floor, etc. is usually subtractive in other ways but that's just me (I'm more from the ddk school as you know).
 

spiritofmusic

Well-Known Member
Jun 13, 2013
7,284
443
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E. England
#16
Keith, I've never made any claims for tweaks outweighing component changes. But as someone very happy w the sonic signature of my SET/FRD presentation, my mindset is to maximise this via optimisation, not brand new amps and spkrs. Hence these cables.

And FWIW, Ching Cheng cables aren't exactly chump change either. I'd be more impressed w the anti tweaks brigade if they kitted up w Cheap As Chips $5 power cords from the local high street generic store.
 

spiritofmusic

Well-Known Member
Jun 13, 2013
7,284
443
83
E. England
#18
Good answer LOL. I thought there was an extra zero in there.
 
Sep 1, 2013
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Chicago, IL
#19
I have the Revelation cable on my Pass XP20. When I installed it, I experienced better detail in the soundstage via instrument separation and placement.

I’m guessing the Revelation cable shields external noise better on the power supplies it is connecting, which provides the audible benefits.
 

spiritofmusic

Well-Known Member
Jun 13, 2013
7,284
443
83
E. England
#20
Jimmy, my pair arrives next week. Hoping for some of your gains.

Did you get out of the box improvements or was bedding in needed?
 

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