Mundorf polyprop x Rodenstein MKT listening test preparation - diyAudio
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Old 1st February 2014, 03:45 PM   #1
PMA is offline PMA  Europe
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Default Mundorf polyprop x Roederstein MKT listening test preparation

Hello all who are interested in listening comparison off different capacitors. I would like to prepare a test that would compare Mundorf MCap ZN (polypropylene)
Mundorf M-Cap Zn Tin-Foil Capacitors

with MKT polyester Roederstein ERO MKT1813
www.vishay.com/docs/26013/mkt1813.pdf

I suggest 2 test files, A and B; or possibly 3 files, where C would be one of the caps used in A or B. The sound files would be in 48kHz/24bit resolution. I would appreciate your thoughts and suggestions, like 2 or 3 files, and a kind of music used for a test. In case there are people interested in such test, I will prepare sound files with Mundorf and Rodenstein capacitors, polypropylene vs. polyester. Your thoughts are appreciated.
=====================================
Test files for download have been created

OK, here are three files. 2 of them are through same capacitor, only different recording, third file is from second capacitor.

https://www.dropbox.com/s/ce2euq2kq7v3ftz/cap1.wav
https://www.dropbox.com/s/4yjjmcef04ascag/cap2.wav
https://www.dropbox.com/s/kgeiyn17c2v4kix/cap3.wav

I would like to see:

1) an ABX result between 2 of 3 files
2) a guess which 2 of 3 files were recorded through same capacitors
3) which files are from Mundorf and which from Roederstein

Anyway, if you post your ABX screenshots according to (1) only, I will appreciate it more than enough.
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File Type: jpg capacitors.JPG (78.3 KB, 336 views)
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Last edited by PMA; 2nd February 2014 at 10:45 AM.
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Old 1st February 2014, 03:57 PM   #2
Turbon is offline Turbon  Sweden
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How about:

1 Classical, 1 Rock and 1 Reggae?

For the classical I suggest Albinoni , Oboe concerto.
For rock - Telegraph road from Love over gold, Dire Straits.
Reggae - something bass heavy.

Regards
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Old 1st February 2014, 04:02 PM   #3
PMA is offline PMA  Europe
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Thanks for your suggestion. I will keep it, at least as music styles suggested. Later I will tell what I have available in high quality.
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Old 1st February 2014, 04:37 PM   #4
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I don't think capacitors care about music style...
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Old 1st February 2014, 04:40 PM   #5
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Are you going for fidelity or difference? Oops I see now - difference. So this is not about "high-end"!

//
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Old 1st February 2014, 04:52 PM   #6
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Both. I will provide measurements, as I always do.
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Old 1st February 2014, 05:15 PM   #7
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Cool! Alas, also a straight wire version?
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Old 1st February 2014, 06:01 PM   #8
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It is also possible, as an option. In the same setup fixture, as capacitors, just a capacitor replaced by wire. Everything must remain the same, cables, length of wires, fixture. We may have only one variable to get valid data, and this would be a capacitor or capacitor replaced by wire. I have already tested the fixture with caps for distortion = distortion of whole D/A - fixture with caps - A/D. Capacitors make almost no difference, just in order of 0.00001%, when they are exchanged.
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File Type: png cap_test_1k.PNG (74.4 KB, 320 views)
File Type: png cap_test_5k.PNG (68.7 KB, 309 views)
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Old 1st February 2014, 06:02 PM   #9
PMA is offline PMA  Europe
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And intermodulation
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File Type: png cap_test_imd.PNG (72.3 KB, 308 views)
File Type: png cap_test_ccif.PNG (70.3 KB, 304 views)
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Old 1st February 2014, 06:15 PM   #10
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The most common mistake by hobbiests lies in the assumption that any change will be shown in harmonic distortion tests. If any change is found to be under -70dB, it is unquestionably inaudible. What can account for a perceived change either in tonal balance or sonic signature, resides outside the scope of harmonic distortion. Is found instead within the domain of dynamic distortion.
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