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Thread: the Superex professional ST-PRO-B mods

  1. #11
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    Superex headphones in the movie "Talk to Me " The old gray pro B's are in a movie bassed on the life of Pettey Green.
    http://members.rottentomatoes.com/do...r2_060807.html
    Jeff :UBERTHREADKILLER

  2. #12
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    Specs are as follows: Doubble headphone dynamic woofer,ceramic tweeter:4-16ohm impeadance:frequency responce 18-22,000 c.p.s. 60-18,000 +3db.
    normal power,30mw;max power,2 watts.Cable length 7ft.
    4 conductor cord in 1/4 3 pole stereo conector.
    Jeff :UBERTHREADKILLER

  3. #13
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    Jeff :UBERTHREADKILLER

  4. #14
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    I have found the perfact replacment ear pads for all the Superex pro modles.
    They are made of pleather by a current company named Calrad (headphones for metal detectors. Model 15-135 is an upgrade replacment set.
    The phone number for the company is 323 465 2131.
    They fit like they where made for them,I have tried so menny pads before finding these and they are a perfact fit.

    Well, these pads have very soft 1/2 inch foam,makeing for discomfort and a very forward presentation with less soundstage.
    I didn't give up on them though,after removeing the foam I was able to replace it easily with 1 inch just like in the pad rebuild pics.
    They seem to be working sweetly now.
    Attached Images Attached Images
    Last edited by goraman; 22-08-2010 at 07:53.
    Jeff :UBERTHREADKILLER

  5. #15
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    Any carbon fiber guys here,my next mod is to make new ear cups.
    Exact copys useing the old ones as a mold.
    I understand it's alot like fiber glass.

    I REALLY SHOULD GET A LIFE
    Jeff :UBERTHREADKILLER

  6. #16
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    Pics of Superex ST-pro B time capsiled.
    Jeff :UBERTHREADKILLER

  7. #17
    Join Date: Jan 2013

    Location: Suttons Bay, MI

    Posts: 3
    I'm Frank.

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    Goraman,
    I was happy to find a Superex ST-Pro-B and planned on modding it as you outlined. That is, until I found the model IV I had purchased had two transformers each speaker and no capacitors.
    Do you have an alternative 'fix' for the model IV or do I need to live with it, as is?
    Frank Dobias

  8. #18
    Join Date: May 2008

    Location: U.S.A. Neo-Socialist Kalifornski

    Posts: 3,262

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    There isn't much to do for the IV.
    I would leave it.
    Jeff :UBERTHREADKILLER

  9. #19
    Join Date: May 2019

    Location: Rzeszow

    Posts: 3
    I'm Przemyslaw.

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    Hi, Goraman! I thanked you in the Welcome section for guiding me to these truly outstanding headphones.

    I would like to add my five cents to the discussion.

    If this is not the right place, I'm sorry, I'll move the post.

    As for the presentation of the sound, they are unique headphones. No other headphones sound like that. The general characteristics of the sound remind me of the highly praised AKG K240 DF, used in recording studios and radio studios in Germany. But the AKG 240 DF does not have this very special spatiality of the sound and bass.

    I came across Superex PRO-B headphones by browsing the old Lafayette catalog. My first thought was: "Nah, Koss Pro 4AAA did not sound so good, so it makes no sense to spend the money in vain again." But then I came across your post that was really interesting, i.e. that Superex PRO-B has a unique sound that even electrostatic headphones do not have. And I confirm this!

    At home I have Lafayette F500 and Lafayette F990 headphones, another 2-way system of the era, made by Elega in Japan produced under the name Elega DR-119CH:

    http://20cheaddatebase.web.fc2.com/elega/DR-119CH.html

    https://www.head-fi.org/threads/lafa...ons-eq.756312/

    and both Superex PRO-B and Lafayette F500 come to life only on the Realistic Sta-220 and Sansui 3000A amplifiers. These two receivers are among the best that have ever been produced. They are unique when it comes to extracting high-quality bass from the speakers.

    Japanese engineers, i.e. those people who produced the best amplifiers of the era, i. e. Sansui 3000A, Sony STR-6060FW and Realistic Sta-220 (Hitachi SR-1100) knew what they were doing, because everything depends on the design.

    In my opinion, the Superex Pro-B headphones have been specially made for jazz and classical music and hence their unique presentation. Rock music does not sound so good on them, at least not all songs, but all jazz music sounds highly outstanding with superb clarity, sweetness and unique tone.

    As for the mods, one idea to get most from Superex PRO-B's extraordinary headphones is to use Sansui 3000A, Sony STR-6060FW or Realistic STA-220 with an adapter like HiFiMAN HE-Adapter to be able to connect the headphones straight to the loudspeaker inputs. I was using HiFiMAN HE-Adapter with AKG K240DF headphones after ordering the adapter from China.

    But it is also possible to make such an adapter:

    http://www.dms-audio.com/power-amp-heaadphone-adapter

    or to buy a cheaper one from China:

    https://hifi-exquis.com/headphone-ad...t-adapter.html

    The most important thing to remember is that the sound will be the sound of the amplifier to which we connect the adapter and the Superex PRO-B headphones, and hardly anything can beat Sansui 3000A, Realistic Sta-220 or Sony STR-6060FW.

    Best regards,
    pmusiaowski

  10. #20
    Join Date: May 2019

    Location: Rzeszow

    Posts: 3
    I'm Przemyslaw.

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    UPDATE: In the last month, I've bought Khadas Tone Board and the sound in combination with Superex Pro-B is simply breathtaking!

    https://www.khadas.com/tone


    I think some aspects make Superex headphones best headphones in the world.

    I bought all the versions from the US to be able to compare them as they are my favorite right now, and the only version worth buying is the grey one with six black small sponges in the headband if someone wants to know.

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