Duelund conversion to DIY Helix Geometry Cabling
I have been an avid user of the Duelund cabling for over two years now and have used them exclusively in my system with great results. I have built many for friends and have used a full loom of interconnects, speaker cables, power cords and an extensive wiring modification for a previously owned balanced power conditioner utilizing Duelund 600V PolyCast wiring which was transformative. My cabling desires can be a little addictive as I have owned and evaluated 40+ brands of cabling costing more than an entire stereo system!
Over the past six months I stumbled upon a thread here on Audiogon in regards to a Helix designed cabling and as you probably already know, I just had to look a little deeper into this cable design…After a month of studying and sourcing parts, I decided to reach out to the designer/architect, Williewonka who gave more insights and philosophy on how the cable came into existence.
That conversation got the ball rolling in converting one of my KLE Duelund interconnects to Steve’s Helix designed which only entailed replacing the neutral with a Mil-Spec 16 AWG silver-plated copper wire with the neural wire being 3 times longer than the signal wire and of course the “Coiling” of the neutral wire : )
After the modification was complete, I was not sure what to expect from the Helix cabling but I was quite shocked with the results with “ZERO” burn-in time…The sound stage became much wider/deeper with a much tighter/focused image and clarity/transparency is like nothing I have ever heard in any cabling regardless of cost. In fact, I just sold a full loom of a commercially designed Helix Cable that’s renowned around the world and has more direct sale than any cable manufacturer; these $200 DIY Helix Cables walked all over them…
I believe you will hear the same results as I have and have heard back from friends who have already modified their Duelunds with the same results; WOW! Remember the cables will need 200+ hours to burn-in and settle into your system. My system is now 90% DIY Helix to include IC, SC, PC and Coax with each cabling adding its beauty of an organic and natural presentation that draws you into the fabric of the music.
You can tailor the sound of your cables using Duelund, Mundorf silver/1% gold, the outstanding Vh Audio OCC Solid Copper or Silver with Airlok Insulation or your favorite wiring and you can change it at any time…
http://www.image99.net/blog/files/category-diy-cables.html
https://forum.audiogon.com/discussions/difference-in-sound-between-copper-and-silver-digital-cables
https://forum.audiogon.com/discussions/adding-shielding-to-existing-cables
Enjoy,
Wig
@williewonka, I added a 20AWG Ag to the 2 x 24AWG Ag and now have over 300 hours use and I feel the performance is now stable and probably will not improve further. The additional wire was twisted to follow the 2 thinner wires and then covered the bundle in a cotton sleeve before inserting it back into the helix coil. Tight fit. The helix was wound on a 5mm diameter rod which I've now covered in heat-shrink tubing enlarging it for easier fit. The result is more fleshed out providing a more balanced sound without losing the upper end sparkle, I think. Not being able to revert back as a sanity check is unfortunate, so going on memory is all I can do but I can say I'm entirely happy with what I hear. Excellent stuff. 😁 Not built any power cables yet due to other pressing issues but will when I get a gap and report here. |
@norco74 - nevr tried it, but I would think that the Helix would be an improvement over a more conventiona speaker cable because it does not colour the sound
So regardless of whether you use the speaker terminals or the line input, you need a cable that can deliver an uncoloured signal It would be cheaper to use a good line input cable, as opposed to the heavier wire used in the speaker cable, but that is only if the main amp and the sub supports a bass line ibput/ouput jack Hope that helps - Steve |
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@tecknik - RE:
I found that 25-30% was suitable value because
Hope that helps - Steve
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Williewonka, I believe you mentioned the Teflon tube to be 25-30% larger than the bare wire inside it, what effects does a larger Teflon tube have on the sound. i just finished building a new dc power cable using 2x 26g wires and the smallest Teflon tube I could find is probably a 10g . regards tecknik |
@pindac Dear PINDAC, thank you. I will go with PC-TripleC as of now. Cheers. |
I have not found a Bulk Supplier of the Wire, as D.U.C.C which is the name used when found in a Cable. Mitsubishi has a Ref Code for the Wire which I believe is the same wire. I have never found a Bulk Buy option whilst researching this Ref Code either. https://www.mitsubishi-copper.com/en/products/materials/mof_6n8/ My D.U.C.C Wire has been purchased as Mitsubishi D.U.C.C Cable. Note: D.U.C.C Wire has the capability to underpin the presentation with a hint of Richness, this really suits a Vocal, but in one system during it in use as a demonstration against a Pure Silver Wire Cable, one attendee was claiming there was a sound being produced where the Female Vocal sounded slightly nasal. It might be worth having a Trial with a Cable prior to fully committing to the Purchase. I myself have not had a better Cable between CDP>DAC, this has superseded, OCC, PC TripleC, and a Mapleshade Ribbon. |
@pindac Dear PINDAC, may I ask where to buy D.U.C.C. bulk wires? Thank you. |
@williewonka, I will heed your advice, add the extra signal wire and allow it to accumulate some hours before doing anything else. I think that the single strand of wire should not take as long to settle down as the full build did. Yes the OCC is available with PVC insulation and is as you say less expensive than PTFE. It's also easier to remove. |
@lemonhaze - having a slightly smaller neutral will not impact performance singificantly. You could add a second 18 gauge Neutral which would make it larger than the revised signal conductor, but I would wait until you’ve listened to it and then if you feel there is some shorcomings then perhaps tackcle a second neutral OR even replace it with a 16 gauge neutral I might opt for a 16 gauge neutral, as it might provide a slight advantage over a 2 x 18 gauge neutral. I tried a dual wire neutral and for me it did not provide enough of an advantage considering the addition effort it took to build. But others swear by the dual neutral build. My build was using bare wire inside teflon tube for the neutral, while it is a very nice cable
WRT the bare 14 gauge wire - I guess you would have to buy wire with teflon insulation and remvove the insulation. I did this before I found the bare wire I think there is a version that has PVC insulation which is more affordable Hope that helps
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@pindac, yes the CCC wire is impressive as is the OCC Ag. As most of us realise systems differ and mine which is border line over-analytical requires, I think a mix of these two types. I will modify the 'skinny' IC and allow many more hours play and then figure out what direction to go. What I do know now is that the helix design is inherently superior to anything else I've tried. To this end my Van den Hul Orchid interconnect was my reference. It's basically a single stand of Ag. in VdH 'special' insulation with a coax style neutral and additional screen. He uses hybrid and various weird stuff in his cables. I used to refer to his cables as Van den Dull but the Orchid is an exception to this. When I replaced the above with the CCC helix I was immediately thrilled with what I was hearing. This one pair of interconnects was not just different and a little better, it took my system to a higher level and my thinking changed! This expensive exercise has possibly saved me money 🤔 I no longer feel that maybe it's time to upgrade my 30 year old Wadia 15 DAC. Plays redbook only and I do not feel this is a handicap. My DIY power amp is performing beautifully with explosive transients and dynamics. It can stay. More experimentation with different concoctions will add to the Helix Cookbook recipes. |
@williewonka, hey Steve I'm glad you responded to this confirming my doubt about Cu. and Ag. in parallel. The 20 AWG and 24AWG Ag. I have are all P/Connex solid bare and if I add the #20 to the mix will result in about 17.5AWG. As the interconnect stands it has an SOCT-18 as neutral which is smaller than your recommendation to have a thicker wire for neutral. Is this going to impact negatively on the performance? I hope not. My options with what I have on hand: Replace the helix coil with SOCT-16 or add an additional SOCT-18 If I'm not mistaken, according to Stephanie, that is the last we will see of the BARE 14AWG Cu. Any suggestions for a substitute?
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@lemonhaze Thank You for your continued description on the perception of the CCC Wire. I have the perception that CCC Wire as a standard Cable configuration cleans up the presentation in a improved manner over a OCC Wire as standard cable configuration. When compared as a DIN>RCA Phono Cable the CCC Wire Cable Superseded a OCC Silver Wire Cable, the CCC was perceived as the wire that offered a preferred balance across the frequencies, notes and vocals were delivered with a improved substance to their envelope and was certainly the least smearing of the Details/Micro Details. I would suggest that the two cables can be compared at intervals, after experiencing extended use of the wire types being used. My HiFi System is nearly all in storage at present, which results in my delay to produce the Helix Cable Design. I have now offered a friend a selection of collected Wire to build the Helix Design for themselves. In my cache of Wire, there is a Stranded PC Triple C/EX which has a forged CCC Silver Coating on the Copper Core Wire. This is one I was going to strip down to the strands and attempt to make a Tonearm Internal Wand Wire. |
@lemonhaze - I would NOT recomemnd mixing copper and silver wires for a single signal conductor - the speed of transmission of the two metals is different and the resolution/clarity will suffer Adding the 20 gauge Ag to the 2 x 24 Ag wires is a much better idea provided the quality of silver of the three wires is identical Regards - Steve |
Yes, I agree. At the price of silver wire I will not be making premature decisions. The first helix I built was with PC Triple C Cu. which I left in its insulation and has had now about 220 hrs. It appears to have stabilised but will not disturb it for now. It will be relatively easy to remove the signal wire, remove its insulation and place each wire in a PTFE tube and listen again. I have for some time suffered from an upper mid-range glare. Female vocals were mostly unlistenable. The CCC calmed that down to the point that we were able to listen to music that we once avoded. As previously mentioned I can now listen to more of my files which IMO is a huge win. The extra sparkle from the OCC Ag. is attractive and for my system may require combining a strand of CCC which is 19AWG Cu. with the 2 x 24AWG Ag. though I don't know yet how Cu. and Ag. in parallel will behave. |
Hi guys, I have just received an email back from Stephanie at Parts Connexion that the 14AWG bare Connex solid Cu. wire is out of stock and that the business that supplies it has closed down !&^%# Any ideas for a substitute? I have 70 hrs play time on the 2 x 24AWG Ag / SOCT-18 interconnect which has amazing high frequency detail and brilliance (it's not really bright) but it just sounds lightweight so I am considering adding a single 20AWG solid Ag to each, resulting in about 17.5AWG Any thoughts? The earlier made CCC interconnect by comparison sounds weightier and easier to listen to but seems to lack the inner glow of the Silver. |
@williewonka Hi Steve Thank You for your support. |
@tecknik - I've found shileding on cables impacts the openess, so I never use it. Also the Helix coil acts like a faraday cage, which makes the need for a shield redundant. I've clenched a Helix power cable next to a Helix interconnect in my fist with the volume at full volume (no music playing) and the resulting hum was barely audible I did have one instance where a friends very old tube system created a hum with a Helix Interconenct connecting the turntable to the amp's internal phono stage. So he had to use a conventional shieided cables for that duty.. But I have also had reports from many others that there was no hum present in that situation on their more modern systems. Personally, I have never had a hum issue due to the helix interconnects, so I have never pursued using a screen on them
Hope that helps - Steve |
No problem williewonka, Have you tried wrapping the live wire in copper mesh before winding the neutral and ground around it with the male side grounded? would this increase capacitance or resistance effecting the dynamics. The thought of wrapping the live with a copper wire mesh popped in my head but given the amount of work it will take I wanted some thoughts before I proceeded.
thanks , steven
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@tecknik - apologies for the delay in answering the following
I have not observed any changes in perofrmance when altering the diameter of the helix coil. I intially believed there may be some benefit to having a larger coil, especially WRT speaker cables, which carry a higher voltage than interconencts, but subsequent work with power cables proved this supposition to be incorrect. I do still believe that increasing the ratio of the Helix neutral to the signal wire, i.e. resulting is more turns, on those cables used between the turntable and the phono stage, could help reduce the amount of noise present on SOME OLDER systems.
Hope than answers your question Regards - Steve |
@pindac - apologies in the delay of my reply. Regarding...
Unfortunately my practical experience is limited to single ended designs, because I have no components that share the balanced XLR architecture. However I have some limited experience with XLR connectors and cables. What the EE appears to be referring to is a floating shield approach. For this to be effective there must be at least two llayers of seperate shielding
The main issue these days is that many source components are of an insulated design (i.e. they have a two pin plug, so they are NOT grounded, which means this approach will be of little use because the noise is not wicked away. With the design of the Helix, the helix coil "interupts" any external RFI
This link may help your understanding of where the "EE" is coming from Hope that helps - Steve
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@toolbox149, I am hearing what you described and believe it or not, after last nights session, considered adding a third 24AWG AG strand which would end up about 19AWG and easy enough to do. Steve has tried, I think, 4 strands in parallel and claims no improvement heard, which gives me reason to be cautious. However looking at what Kimber has done they seem to be successful with their Varistrand cable using multiple different gauges. I am now considering paralleling 26, 22 and 18AWG all in individual tubes together giving 1.28sq. mm, close to 16AWG overall. Any brave souls out there willing to buy all that silver and experiment? |
@williewonka, Some kit arrived earlier than expected, for a change, so I made up an IC using 2 x 24AWG solid AG in separate ptfe tubes with SOCT-18 for a 3.5:1 neutral with KLE Absolutes. My previous build used the twin 19AWG CCC that pindac introduced. I now have about 105 hrs play time and they sound really very good. A huge upgrade which left my wife and me with big smiles. I removed the CCC pair and replaced them with the 'recipe' above. Straight from my grubby hands and into the system so no run time at all. We heard a cleanly detailed, open sounding, leading edge/transient monster. I heard percussion coming from places not aware of before. It was providing more important information than the CCC. We both felt that we heard more upper register detail with the overall gestalt a little on the lighter side, which did not surprise me. After some time I left the 24AWG Ag in place between the Oppo and line-stage and then connected the CCC's between the line-stage and amp. Hellooo, head and foot-stomps. I understand that the pair of AG IC's will change with more play time but the sound right now has improved to the point where before, one of us would dive for the volume control with screwed up face because of screechy female vocals. Not so much now. Some tracks, previously unlistenable became tolerable. Large orchestral works, normally congested and brash on my system were now better rendered and instead of skipping allowed us to hear the musical intent, and if still not pristine was at least listenable. Prior to these helix delights I could listen only to about 20% of my files, now I think it's closer to 50%. This alone to me is worth the cost of entry 😎 Next build will be 'standard recipe' : 2 x 20AWG bare AG in tubes with 3.5:1 SOCT-16 neutral. NOW for the biggest 👍 My wife, always supportive, is now actively encouraging me. This morning I got the " building any more?" glint.
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Thanks Steve, I gotta say, of all the things/tweaks I have ever tried, these cables, run shotgun style with another cable, have surpassed everything else I’ve done; including upgrades to some of my components. I didn’t think my setup had enough quality to sound this good, but your cables elevated my system from “very, very good” to “ holy crap”. The overall improvement in SQ was easily more than I would ever hope for when upgrading a component. Thanks Tim |
@toolbox149 - I only ever use Solid silver for the Signal wires, because as you said, it becomes very expensive if using solid silver for the Helix as well. My apologies if I did not really make that point clear in previous posts RE:
Perfect! - also I DO NOT use the "AIR" adaption for the neutral - I just use OCC wire with Teflon insulaton. I did try using the air adaption, but it made no difference to sound quality Regards - Steve
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Steve, One question. When I was almost finished with my solid copper interconnect project (I have 9 interconnect pairs), you tried OOC5N silver wire and pronounced the results as even better than the copper. Grrrrrrrrrrrrrrrrr 😀 So, I made one set and I also was very pleased with the results. I have two, maybe four more locations where I could replace the copper interconnects with silver. Even though these would be 1 meter long, the cost could end up being prohibitive. |
Lemonhaze, Sorry to take this long to post. I haven’t been back to this thread in a while. So, I built a set of wires with different gauges. I originally wanted an 18g matched with a 22g set, but I couldn’t find any OOC6N solid copper wire in that gauge, so I tried 24g instead. I was correct in thinking the higher frequencies would be improved. The highs were simply shimmering. Unfortunately, the 18g/24g setup somehow robbed my impact and my bass response. The shimmering highs were not anywhere near enough of an improvement to offset the losses in the lower ranges. So, I made a pair with an 18g matched with a 20g. This proved to be a nice combination for me, so now, all of my interconnects have an 18g/20g combination for the live wires. I notice a little bit more in the higher frequencies but any diminishing of the bass and overall impact aren’t really noticeable. I hope this can help. Tim |
@lemonhaze I was quite taken with the PC Triple C wire. Others I have introduced it to have given it a very good appraisal, and I have been demonstrated some of the designs been put in place for it. As a Wand Wire and Internal Phonostage Hook Up Wire, it has left me very impressed. I felt confident there was a place for it with the Helix Designs and am glad to have bought into this idea and the CCC Wire to produce these Cables. |
@lemonhaze - glad you finally had a positive experience with the Helix 🖕 WRT:
That will correct itself at about the 60 hour mark. But... they keep getting better until around 200-300 hour mark, where they finally settle down. If you have to remove them for any reason you may notice it takes 10-20 hours for the cables to reseat, before they sound their best again. Keep the thread posted with the results of your upcoming solid silver IC’s
Welcome to the Helix! Regards - Steve |
@pindac, thanks for bringing the CCC cable to our attention. It's the best IC in my collection by far. Will be able to compare it to the proven IC recipe in about 10 days or so. |
@williewonka, many obstacles and delay when ordering from UK or Europe. Strikes and protests severely disrupting my cable building exercise. A word of caution against using dienadel.de for components. Fighting to get a refund after returning some connectors. Also www.acoustic-dimension.com totally useless. They lure you onto their site with cheapest prices but do not keep any Neotech in stock. Basically drop-shipping. Waiting time - several weeks While waiting for kit to arrive I made up a pair of interconnects using the CCC, the first wire I received. I debated using as is or stripping the insulation for the bare Cu. With no PTFE tubing yet delivered I went with the cable as supplied. The solid Cu. twin wire is 19AWG and measures 5.9mm in width which I tried to fit into a coil of Neotech 16AWG wound on a 5mm fibreglass rod. I had to separate the conductors to get them to lie a little closer together. I shrunk some heat-shrink tubing over the rod to increase its diameter should I make another. I inserted these between my Oppo and amp because Spotify runs all day so quickest run-in time. Initial listening was using redbook files from an external HD I can state that I do not like what I heard, my wife and I simply love them! Whatever we played we heard details that we had not heard before or had not noticed because they were buried or obscured, but detail is only part of it. It was a more immersive experience with the leading edges of notes easily noticed, making percussive sounds exciting and more real. Darbuka, djembe, tablas and congos sounded excellent, better than I've heard before. Piano sounds wonderful with the player's left hand more obvious. There was a fullness in the portrayal now and that was first listen. Jacob Gurevitsch's guitar sounds gorgeous. Knopfler's guitar on 'you and your friend' pops out. Listening to very well produced Christina Pluhar's -- Los Impossibles recorded in Chapelle de l'Hopital Notre Dame du Bon Secours, the sense of space in the large hall could be heard even before the music started, not ever noticed that before. My system is border-line on the bright side of neutral and was apprehensive about excessive detail but need not have been concerned, the IC provided a fuller sound and with more detail that was welcome. Steve, perhaps consider changing your handle to willieWOWwonka 😁 I now have about 40hrs play time and yesterday I found a little of the magic missing. More stuff should arrive in a week and I intend to build another IC with twin bare 20AWG AG to compare directly with the Cu CCC. Let me finish by stating that anyone sitting on the fence should jump straight in. |
When the System is reassembled, the intension is to be using this design of Cable. In the interim, I am having a few changes put in place. The Power Amp's are to being returned to the Designer/Builder to be converted to work as Balanced and Single End. Another EE Friend is now commenced with building a Balanced/Single End design of Pass Korg Nutube B1 Design Pre-Amp is being produced. The Power Amp' EE has asked for all devices to be in use, to be made available for the final testing to take place, as well as be supplied XLR Cables that can have a Earth Shield detached at One Connector. The query is, does the Helix Design lend itself to this request from the EE. I was not quite onboard with the EE's inquiry, when questioning me about the Cables to be built, I am interested in meeting the request from the EE, and to have a Cable available with this as a option, which will be able to have a shield detached. |
@donnylovely - Glad you are enjoying the Helix Speaker Cables RE:...
I know what you mean - I had a similar experience. HOWEVER - before you go around moving your speakers too much, I would recommend playing a wide variety of music to see if the bass has infact diminihsed
Also, give the cables about 200 hours break in before making any other changes. Nice to hear you plan on making the other Helix Cables - I posted very early on in this thread, the more helix cables you introduce into your system the better it sounds 😀 You might just find that the bass returns when you install the "Coax’ cable 😎 Once you have the cables sorted, then try moving the speakers Regards - Steve
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I just made the helix image air speaker cables with 2 14ga in Teflon tube and 12 gauge in Teflon tube. I just hooked them up and Holy sound stage! Instruments are more separated and everything got bigger. I think I need to move my speakers to get the bass back in the new sound stage. Thanks Steve. Going to make a coax next with silver and then power cables. |
@tecknik - see below
There are many "permutations" that you can use
As for coverage - these are NOT screened cables
I have not tried low mass spades
Yes you can cover them - it will NOT impact sound quality Regards - Steve
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@ williewonka, Im now thinking of making a pair of speaker cables and have a few questions. For the live wire you’re stating live wire 2 x 14 solid and neutral wire 1 x 12 stranded. Why not 2 x 14 solid and 4 x the length rather then 2.5 don’t you want more coverage of the live wire. Shouldn’t live and neutral wires be the same size 2 x 14 yields a 11 g. Vs 1 x 12 g. Have you tried low mass spades ? Can I cover the speaker cables in a designer sheath to look more professional or does this affect the sound quality. You guys are right the cables take a dive around 20 hrs before opening up nicely around 50 hrs I was about to yank them out but something kept catching my attention in the presentation, a naturalness I guess you could say.
regards steve |
@lemonhaze I have been an advocate of PC Triple C for quite some time now, along with another Wire D.U.C.C. The amount of individuals now turning to Triple C in my locality as a result of my loaning the Wire for demonstration has increased to quite a few converts. It is even now in use as a Tonearm Wand Wire by a few of the converted. @mbolek has now used PC Tripe C to produce Helix Cable and his comments are found in this thread. The usage period is now quite extended, he might be able to update on his thoughts on the Wire in use. |
I agree with Steve, there’s some noticeable degradation happening in SQ around the 25h mark that is slowly improving from H=45 to 100. From my experience on resoldering banana plugs on broken speaker cables, H=48 is usually how much time it takes to significantly break-in the solder and connector. I use Cardas gold/silver solder and rolled berylium/copper banana connectors. I found out the Helix cables (interconnect and speakers) sound best after hundreds hours of playing and that would equal to a few months of music listening in my case. I read somewhere that it takes around 700h to break-in cryo parts which could also be an explanation about the long break-in time of these cable. I have built most versions of these cables (Duelund Poly, Duelund Cotton, UPOCC Teflon and UPOCC Air/Teflon). One thing for sure, all of these cables sound extremely good. One must remember that all of this is subjective and unless you have only changed one cable in your system, it would be hard to assess and measure the improvment over time. YMMV. |