D1 XLR
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I put this cable in between my Ray Samuels B52 Preamp and my EAR 890 Amplifier. The cable the D1 XLR replaced was my Kimber KCAG XLR.
With the replacement, the first thing I noticed is that the D1 XLR did absolutely no harm. The system remained musical and extremely enjoyable. Hence, since I did not wince at first listen (a very good sign), I kept playing my familiar test tracks.
The D1 XLR is very inviting and smooth from bottom bass registers to the vocal range. The cable seems to have a somewhat laid back character which enhances the musicality and listenability.
The bottom end seemed to be more round sounding and flowing into the vocal range nicely. Compared to the Kimber KCAG, the KCAG manages to be even more smoother but with much more definition. The D1 XLR maintains the transient information, but the edges of the beginning and ending of a note is slightly blurred. Hence, the D1 XLR makes for a pleasant listen, but loses out on definition that is on the recording.
From the vocals on up, the D1 XLR is reserved. The information is there, but becomes part of the music as more background. The shimmer and air around cymbals seems diminished compared to the KCAG. The information is there, but rounded and somewhat receded. Again, makes for a pleasant listen, but after a while, I was less engaged with the music.
For me, I would probably use the D1 XLR in a system that is more forward or analytical sounding to bring in some "humanity". It will help to flesh out tones and textures while maintaining a musical poise. However, in a finely tuned system, it must be placed strategically to ensure the system moves in a direction you want it to. I like this D1 XLR cable, but it's not for me at the moment.
D1 RCA:
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This particular cable was put between my VPI turntable and the EAR 324 phono stage. This is the only area my system used a single ended cable at the moment as the rest of the system uses balanced XLR cables. The D1 RCA replaced a run of Jorma Unity RCA cable which runs $4000 a meter.
The D1 RCA sounded great in this setting from the get go. The top end came in beautifully this time and did not have a recess as in the XLR version. Cymbal work shimmered with very good air, actually excellent air but still less than the Jorma Unity.
Now comes the juicy part! The mid bass on this cable is sublime. The heart of the music beats with colors full of life and vigor. There is a slight midrange oriented sheen on the music, but I absolutely love it. Again, that "human" factor is prevalent in spades. Voices, guitar tones, overtones, bass lines, horns, wood winds, brass instruments come in with stunning musicality. This RCA D1 is just a winner. I don't see any system it will NOT work in. It is pulling in lots of definition and serving it with such passion, I would not mind having this cable in my stable of RCA cables. Winner for all types of systems.
D2 RCA:
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Again, put between the VPI Turntable and the EAR 324 phono stage, this cable is clearly cut form the same cloth, however, it is slightly more balanced (or read another way, closer to the neutral side of the sound spectrum). Slightly less "fleshy" than the D1, but now this cable is portraying yet another additional level of detail and clarity in the musical spectrum.
Listening to the D2, I feel there is more information coming through the cable, but with further listening it becomes clear that it is the change in presentation that seems to make this so. I feel the top end has opened up more with more definition, the mids and bass, as a result seem less plump but portray more definition again.
In short, I feel the D2 has more definition and transient information coming through with the slight musical plumpness diminished compared to the D1. I actually really liked that about the D1!
D2 is a winner again. I would most likely use this in a more traditionally tube based system. I would probably shy away from this cable in a solid state system unless the solid state has a nice big/rounded bottom end. Definition, linearity, transparency is the name of the game here.
DD RCA:
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Used in the same position as the others, this is the best cable of the lot for me. This has a blend of both the strengths of D1 and D2 in my system with a natural presentation.
I am now getting the nice bottom end with full musicality without extra fat. The top end is open and airy while the mids are properly fleshed out. This is now closer to the balance offered by my Jorma Unity RCA cables. The Jorma provides even more information in terms of soundstage height, width, depth, bottom end, mids and a much more information in the top WITHOUT being bright.
The DD sounds like a Jorma Unity, but less of everything. I guess, the Jorma Unity gives more in all respects akin to a Mercedes S-Class. The DD is also a Mercedes, but more of an E-Class. This doesn't take anything away from the DD as sometimes you don't want to be driving an S-class all the time

I really really like this DD cable and think it can easily be used in any kind of system allowing the music to come through without crimping it in any way. This is my kind of cable and the winner out of all three in a finely tuned system. The other cables would work great and could be a better match in a given kind of system. In the end, I guess it all depends on the setup, the room, the listener and the music.
Thank you so much Dave. You are obviously on the right path as the DD cable compares nicely to some of the more expensive cables on the market…just like you set out to do. Congrats on the achievement!
NOTE: I made sure NOT to read any of the reviews of these cables to ensure my thoughts are not influenced in any way. Looks like a lot of the conclusions I drew fit along side experiences of others.
My System:
- Marten Design Bird 2 Speakers
- Chord QBD76HDSD Dac, EAR Dacute Dac
- VPI TNT VI "Hot Rod" Turntable, JMW 12.5 Tonearm, HRX Motor, Superplatter or Aluminum Platter, Van Den Hul Grasshopper III GLA Phono Cartridge,
- Scheu Premier III Turntable, Schroeder Model 2 Tonearm, Jan Allaerts Cartridge
- EAR 324 Phono Stage, Jadis DPMC Phonostage, Einstein Turntables Choice Phono, Ray Samuels F-117 Phonostage, Eddie Current Transcription Phonostage
- EAR 868 Preamp, Ray Samuels B52 Preamp
- EAR 890 Amplifier
- Power Conditioning by Exactpower EP15a, Exactpower SP15ax4, Richard Gray 400s
- Cabling is Kubala Sosna Emotion, Kimber, Furutech, Harmonix for signal and power.
*NOTE: I'll be ready to ship the cables out by next thursday or so. Dave, please send me the shipping details of the next person please.
Thanks!