Posted on Tuesday, 23rd March 2010 by Auw Jimmy

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I acquired another varian of Jensen Film Caps, the Copper Tube. Basically, Jensen has 4 enclosure models, the cheap Aluminum Tube, then the Paper Tube, Copper Tube, and Ceramic Tube. So far, I have no interest (or budget) to try the Ceramic Tube, so I take the Copper Tube  (hope I made a good decision).

Inside, all of them should be the same. Just the enclosure is different. But I note a significant different in weight between the Aluminum Tube and the Paper or Copper Tube.

After several hours of break-in session, soon I will held a session between my favorite Paper Tube vs Copper Tube. This should be interesting, since Copper Tube is more expensive, and should provide an advantage – less interference, thanks to the Copper natural behavior.

But we must wait several days, or week, until they pass the break-in period.

jensen-copper-tube



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Posted in Collectible Stuff | Comments (26)

26 Responses to “Soon, Another Shootout: Paper Tube vs Copper Tube”

  1. SS Wong Says:
    March 26th, 2010 at 09:41

    if the differences is only the casing then we can just buy the Al casing they wrap the AL casing with other material like paper masking tape –> to become paper tube.
    wrap with copper foil to become copper tube and use cement to become like ceramic? : ) just kidding….



  2. Jimmy Auw Says:
    March 26th, 2010 at 09:54

    Well, you can try… ;)
    But to make it the same, you must remove the original wrapping (like the Al), then change it with Paper or Copper.

    If you just double wrap the casing (Al+Paper or Al+Copper), I believe the result is completely different.

    Thans.



  3. SS Wong Says:
    March 26th, 2010 at 14:43

    since it is oil cap, easier way to to just wrap the AL casing for damping only.

    in fact i’m wraping my jensel cu pio al case with teflon tape, now may try more wrapping….



  4. Jimmy Auw Says:
    March 26th, 2010 at 18:10

    Wrapping them with something off course will produce something different (either good or bad, your ears will decide)…
    But double wrapping the case (like Al wrapped with Cu) will not make the sound like the Cu caps… different for sure, but to make it same like Cu is another story.

    Thanks.



  5. Dan Lo-I Says:
    March 27th, 2010 at 10:26

    Wadyuuuuh..
    The return of Bamboo Capacitor …
    Top!!
    Ditunggu Pak Jim laporannya…



  6. Jimmy Auw Says:
    March 27th, 2010 at 18:53

    Hehehe… iseng aja nDan… masih ngejogrok belum disolder tuh…
    Thanks.



  7. SS Wong Says:
    March 30th, 2010 at 10:42

    Just finish wrap my jensen cu pio with teflon and put inside a ceramic tube. not test the sound yet.

    by the way v cap just launch a new series CuTF cap. anyway i don’t think u interested to test it as u already use duelund.

    to me the purpose of casing should be shielding (block rf & electromagnetic wave) + damping.

    let me try and see any differences…



  8. Jimmy Auw Says:
    March 30th, 2010 at 18:19

    CuTF size currently limited to 0.33uF, so I can’t compare with my 0.47 TFTF.

    I believe what you have done will bring a different in the sonic. But I also believe, it will not be the same with the original Cu Tube (since the effect of double/multiple wrapping). Despite of which one is better (we don’t know).

    Thanks.



  9. SS Wong Says:
    March 31st, 2010 at 09:53

    tftf is good but seems not fully suit my taste.

    have u try using interstage instead of using capacitor coupling?

    with the cost of a pair of duelund silver cast u can actually buy decent interstage like tango,tamura.



  10. Jimmy Auw Says:
    April 1st, 2010 at 09:20

    I have tried some IT, but not really like the taste.
    I think between Caps and Interstage coupled has their own good and bad side. We are talking different topology, right? So the comparison might not be apple-to-apple.
    You can’t get both worlds anyway.
    With the quality as Duelund, I don’t think “decent” Interstage could beat it.

    Thanks.



  11. SS Wong Says:
    April 1st, 2010 at 13:07

    thank you for your sharing. u r right cap couple and IT couple is different topology.

    i had heard the performance of duelund cast cu pio in speaker xo, i like it very much but very expensive.

    Since got friend say using IT far better than any best cap, that’s why i’m quite curios to know whther IT can achieve the natural and instrument spacing like duelund cast pio???

    is IT can have the nice tone like duelund?



  12. SS Wong Says:
    April 2nd, 2010 at 10:19

    by the way what brand or model of interstage you had try previously??



  13. Jimmy Auw Says:
    April 2nd, 2010 at 12:40

    Hi,
    I think various, like UTC/Tango/Tamura and some DIY also. Not really owned by myself, just short time listening. It’s good sounding, but I think different “taste” with capacitor.
    Thanks.



  14. SS Wong Says:
    April 2nd, 2010 at 14:45

    thank you.

    In fact i like the way duelund present the music (tone, emphasis on presentation)

    but i also like interstage’s dynamic.

    and i feel that your taste seems quite similar as me, if u like duelund more then i think i that might be my direction also.



  15. Face Says:
    April 21st, 2010 at 07:01

    CuTF will be available in .47uf soon.



  16. Jimmy Auw Says:
    April 21st, 2010 at 09:30

    Well, I do enjoy my CAST Ag right now… I love it more than everything I’ve ever heard before.

    Thanks.



  17. Kees Says:
    May 1st, 2010 at 18:54

    Hi Jimmy,

    From what I’ve read so far these two types clearly outperform the aluminium cased Cu PIO’s, the difference between the Cu and Paper casing however is relatively small (btw: the difference in retail price is also small)

    Curious to the outcome of your comparison!

    Cheers,

    Kees



  18. Jimmy Auw Says:
    May 3rd, 2010 at 20:39

    Hi Kees,
    It takes more time for me to test it, since quite busy now.
    Thanks.



  19. William Chong Says:
    May 31st, 2010 at 15:49

    Hi Jimmy, may I know where you bought the Jenson Caps from ?
    I try the jensen web sites,but no responce after 2 weeks.
    Can you kindly advise me ?
    I am from KL Malaysia.



  20. Jimmy Auw Says:
    June 1st, 2010 at 18:31

    Hi,
    You can get it from PCX, I think.
    Thanks.



  21. William Chong Says:
    June 2nd, 2010 at 14:33

    Brother, what is PCX ? Do you have their contact ?
    Thank you for your input.



  22. William Chong Says:
    June 22nd, 2010 at 19:27

    Thanks for the info.

    Hi, I come back to see the outcome of your comparison!

    Normally, how many hours required to run in the Jensen caps ( Cu Foil, PIO Cu tube )?

    Does the same apply to Cu Foil, PIO Alum Tube ?

    Thank you.



  23. BillR Says:
    November 30th, 2010 at 11:06

    I wish people would not use abbreviations habitually.

    PCX stands for: thepartsconnexion.com.

    Angela Instruments also sells Jensen, at http://www.angela.com.

    In the UK, there is Hificollective.



  24. Auw Jimmy Says:
    November 30th, 2010 at 18:49

    Hi BillR,
    PCX abbreviation comes from PCX itself (check their welcome main page), http://www.partsconnexion.com/

    So this kind of abbreviation does not come from a habit, but a personal claim from the seller itself.

    Thanks.



  25. Auw Jimmy Says:
    November 30th, 2010 at 21:26

    Hi William,
    Around 150-200 hours I think. But at least 50 hours could change the sound a lot.

    Thanks.



  26. David Brown Says:
    December 24th, 2011 at 02:58

    I hear that removing plastic from standard jensen helps the sound , has anyone ever tried this?
    what did you find?



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