I tried the Schroeder method yesterday again with the telephone cables, this time it was 3+3 cores for the + and - ( total of 6 cores per channel). This was done for the DAC to preamp and also preamp to power amp. There was significant improvement in detail and reduced harshness. No amplifier oscillation was noticed in my setup
The earlier foamed coaxial cable + cotton sleeve had a capacitance of 300pF, the single core telephone cable has a capacitance of 22pF and the 3+ 3 core cable has a capacitance of 95pF.
I will now try replace the preamp internal wiring too from single core to maybe 5 cores. Also planned is replacement in my Poweramp input cable from single to multiple cores.
Still can’t figure out why it should work. Capacitance increases, resistance decreases.
IME, removing the outer pvc sleeve from the CAT6 cables will have significant impact on sound stage and tonal response. The pvc has a dielectric constant of around 5+. The PE has just 2.2. Try this too and report.
Yes sir...will fully remove the outer sleeve and try aswell. Will use a couple of tags to hold the wires in placeIME, removing the outer pvc sleeve from the CAT6 cables will have significant impact on sound stage and tonal response. The pvc has a dielectric constant of around 5+. The PE has just 2.2. Try this too and report.
In dual connection I felt a little shift in instrument locations, slight reverb in highs which first actually sounded extended.
Mids are a little harder, a little grit.
Also a silent echo to the overall music somewhere deep into the background which is more felt that heard throughout.
My guess is the poor quality of the balun is messing up the sound. The first four RCA splitters I purchased were really cheap ones. The contacts are chrome plated. There was a hard edge to the sound, and just like you I felt as if there was a slight echo or some sort of secondary sound. But despite all this the tonality of the mids and highs improved a lot. After I got gold plated MX splitters (Rs 90 per piece), there was absolutely no hardness and I could really hear the improvements brought about by the doubling of ICs.
If you plan to continue experimenting with CATx cable, you could simply solder doubled/tripled/etc leads directly on RCA connector. CATx wires are thin enough so I think you can easily insert even 3+3 wires into the barrel of the RCA. Splitters are needed when paralleling existing regular ICs.
Bought much better quality RCA splitters (MX, gold plated contacts) and it sounds so much better than the cheap and nasty splitters I got earlier
No more hardness in the sound. In fact I hear a major improvement in sound stage width and some songs with wide stereo panning in the mastering are playing outside the speakers now. This is a new experience in my setup. Overall it's a very likable sound. Will allow more burn in of the splitters.
You can get the splitter in Mercy Electronics. it is RCA male to 2 RCA female. You will need 4 of these (2 pairs) for each stageCongrats !
Could you please post some photos of RCA splitters and connections ?
I use the splitters shown in the first image. The second one negatively effects the sound stage due to poor quality wires IME
There is absolutely no point in using the wired splitters. It will defeat the whole exercise. The monster gold plated (?) solid copper splitters are the best bet I presume.