Introduction: Hi Guys, A few days ago I started a thread that was named 'Should SBAF do a cable expose?' My intention was not to start a giant garbage fire but to explore an area of the hobby that has been bugging me for a while. I'm totally biased against expensive cables but I can easily be shot down by true believers who say that I should shut my mouth unless I've tried them for myself. Well, I've decided to put my money where my mouth is and begin a personal investigation into this cable business. I will start buying and trying expensive headphone cables to share my experience with everyone. Any suggestions or feedback is welcome and I hope this will be helpful to others. A note on my hearing: I'm far from the most experienced person here but I'm 31 and I believe my hearing is in pretty good shape. I'm the kind of guy who uses 3M Peltor ear defenders when vacuuming and ear plugs when I attend concerts a few times a year. I've gained a lot of useful information from this forum over the past year, hopefully this year I can contribute a bit more. DAY 1: 13/02/2017 Test No:1 - HD650 Stock Cable with 3.5mm adapter (RRP 12 GBP for 3m) VS Cardas Cross Cable (RRP 225 GBP for 3m) Listening Chain: Dell Laptop with Tidal HIFI > HD650 The HD650 is surprisingly satisfying directly out of my cheap Dell laptop. My listening levels are usually around 75dB and I need need to use only half the digital volume control. My usual chain is Laptop>Modi Multibit>Mojo 2 (with stock tubes) and this is not the massive downgrade I imagined it would be. I play a few familiar songs in succession, sometimes listening to the same 20 second snippet 3 or 4 times before switching cables. The switch takes me less than 30 seconds so I don't think I'm losing much in terms of audio memory. Early conclusion: I simply cannot detect a difference between the cables. I listen to a particular detail in a song with the Cardas and then switch to the Stock cable and the detail is still there. I imagine that the bass has suddenly become more pronounced with the Cardas and then switch to stock and notice that it's still the same. To be continued: Next up: 1. I will continue to evaluate the Cardas cable by using it exclusively for a few days and then switching back. 2. I have already ordered a Cardas Cross cable with 6.3mm jack so I can compare it to the stock cable using my Schiit rig. 3. Eventually I plan to try a few other brands as well like Kimber Kable etc. Cheers Thomas Day 2 - 14/02/2017 Test setup same as Day 1 I did some early morning listening for a 90 mins. This time I played complete songs twice. Once with each cable. There was no set order for using the cables. The volume controls were not touched when switching cables. I heard what could be a slight treble energy decrease with the Cardas. This was so small that it could easily be imagined or due to the time between switches. I just want to be as honest as possible with myself and everybody. I’m firmly on the expensive cables are snake oil side but I will report any findings to the contrary. This treble decrease even if present cannot be interpreted as being ’better’. I’m sure most people would agree that ‘brightness’ is the least of the HD650s problems. So far I can easily say that the Cardas seems to be a giant waste of money. The build quality is decent. I would pay maybe £15 to £20 extra for this vs the stock cable. Thanks for all the comments. For the next few days I will use the Cardas for an extended time before switching back. PS I have no problem with cable makers selling their wares based on build quality. Please see Cardas marketing claim below for my specific cable: Proprietary molded mini headphone connections eliminate unnecessary soldered connections found in other replacement cables, thus improving signal transfer. Inside you’ll find double shielded, four-conductor, pure copper litz Golden Ratio constant Q conductors. That’s a real mouthful, but what it means to you is that the Cardas Headphone Cable will significantly improve the sound of your Sennheiser headphones.- The last line clearly seems to be a lie in my experience unless you want to change the meaning of the word ‘significantly’. DAY 3: 20/02/2017 Test No:1 - HD650 Stock Cable with 3.5mm adapter (RRP 12 GBP for 3m) VS Cardas Cross Cable (RRP 225 GBP for 3m) Listening Chain: Dell Laptop with Tidal HIFI >Schiit Modi MB>Schiit Mjolnir 2 SE out(stock tubes)> HD650 Some concerns were raised as I used the cable straight from my laptop. The only reason I did this was I ordered a 3.5mm jack by mistake. My Cardas Cross cable with 6.3mm jack arrived a few days ago.I know that the SE out of the Mojo 2 is not ideal but I think this rig will suffice to test the cable. Again I could hear no difference between Stock and Cardas Cross.Nothing else to report at this time.