JTM 45 Build Caps

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by Red Planet, Jul 8, 2006.

  1. Red Planet

    Red Planet Member

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    If money wasnt an issue wich Current Production Caps would you use in a JTM45 combo build?

    Jensen Paper in Oils etc....
     
  2. Damon

    Damon Member

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    I just looked up the Jensen Ag foils and they're over $100 apiece!

    I did some DC leakage testing awhile back, among the caps tested were a Jensen Cu Foil, a Jupiter Beeswax, and an Audio Note Cu foil.

    To my surprise they were not outstanding performers at blocking DC. I don't know if that's intentional and "part of their tone" or what.

    I'd use Mallory 150s, and spend my money on good transformers, good tubes, and good speakers.
     
  3. TheAmpNerd

    TheAmpNerd Member

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    Try them, you'll like them.
    Use a variety of caps though.

    Experimentation can be phun.

    Enjoy the ride,
    enjoy the tone.

    Then tell us what you discovered
    and what you like best.


     
  4. V846

    V846 Member

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    I agree with Damon and spend the bucks on the components he mentioned then you could try less expensive caps to compare such as Sozo and even those Russian PIO caps aint bad but it depends on what you like.Try em all :)
    David
     
  5. V846

    V846 Member

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  6. samwheat

    samwheat Member

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  7. Red Planet

    Red Planet Member

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    Sozos sound good. I'm not real crasy about the Premium Sozos.
     
  8. V846

    V846 Member

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    Haven't tried the premium Sozo, how do they compare to the old ones?
     
  9. Red Planet

    Red Planet Member

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    A friend of mine had an 18 watter built with them and it became the brightest amp I've ever heard. He had to remove them and put regular Sozos in. I dont thnk it was because of the way they sound so much as the tolerances were all over the place and that contributed to it being extremely overly bright.
     
  10. V846

    V846 Member

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    Interesting ,do you know how wide the variance was? BTW have you tried Angela tin caps? kinda pricey though not as much as the high end PIO however short lil leads on em :confused:
     
  11. Red Planet

    Red Planet Member

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    The builder said they were all over the place. Dont know how much variance though. He took those out and installed regular Sozos and it was fine.


    The same dude is gonna build my JTM 45 and he says he just loves those Jensen PIO Caps so I may try a full set of em.
     
  12. TheAmpNerd

    TheAmpNerd Member

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    Don't believe all the crap about using "Hi-Fi" components in MI (Music
    Instrument) amps either--Simply because you use it to "make" music instead of listening to recorded music.

    The better quality the amp, including hi end components, will make the
    resultant tone of "higher" quality.

    CAUTION
    When you do this to an amp and do it right, you as a musician will
    be out there with no where to hide. If you are a sloppy player,
    can't hear, can't play, you might not be happy initially or at all.
    It forces you to be a better player.

    HOWEVER
    If you've been playing most of your life, know good tone,
    have good technique, and what to hear the fruits of your labor
    and the subtleties in tone, dynamics,harmonics, and touch sensitivity
    then they (hi end components) can be right for you, in the right
    amp with the right circuit.

    In the hands of a true musician they will love you.
    In the hands of a novice, mid level, or dip **** player,
    you will be cursed and slammed.

    CONSIDER
    The fact that many folks will pay for a superb instrument,
    only to play it through a trashy tone sucking amp. Imagine
    removing the layers of crap from an amp that enable you
    to hear your insturment, hear your pedal, hear you make your music?

    Now imagine how beautiful it will be to experience fine insturments
    through a fine amp! You will finally be able to hear what all the
    fuss is about with the instrument, pick ups, wood, guitar type,
    etc.

    ARTISANS W/ EARS
    You will know when you found one. They probably aren't the most
    business saavy. They'll piss you off, have delays, tweak amps endlsessly,
    get behind, etc, etc, etc. They are the Kens and Howards of the world. You may wait weeks, months, or even years for something--Ask folks
    who bought from them, their experience, their waiting, etc.

    You have to experiment, push the envelope, innovate.

    Red Planet, kinda like your guy, using the one type of cap
    made the amp shiney and brittle...using another type changed
    the tone. It happens and if you can hear you will learn too.

    The MM JTM45 Output Tranny sounds great too,
    you'll be glad you used it.

    Well there is my 199 cents.

    Good luck and let us know how it turns out.
     
  13. TheAmpNerd

    TheAmpNerd Member

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    ADDED:

    But don't take my word for it. Check out this guy
    if you are in the DFW Metroplex:

    http://www.myspace.com/jackiedonloe

    Jackie Don is a wonderful talent, doing a sets of originals and
    covers in Rock, Soul and Blues. His regular gigs and jams are
    at the following clubs:

    MONDAY - Maple Point, Maple south of inwood, Dallas

    THURSDAY - Hole in the Wall - I 635, Forest/Harry Hines, Dallas

    SUNDAY - Nates Seafood - Midway and Belt Line, Addison (N.Dallas)


    He'll have a nice little Silverface Vibrolux that I restified for him.
    He always gets complements on his great tone from other musicians
    and especially guitarists.

    Be sure to introduce yourself, he'll probably let you sit in with
    him too. That is always the fun part.


     
  14. Red Planet

    Red Planet Member

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    Talked to my good buddy. He is gonna build it with all Jensens. Keeping my fingers crossed as to how the character is gonna be with all of em.

    The Amp Nerd

    That was a mouth full and I agree 100 percento. I'm no freak of nature Technique wise but no spring chicken when it comes to playing and recognising good tone. Just ask anyone at the last Atlanta Ampfest how my Hand Wired JCM 800 2203 sounded with a 52 reissue Tele. Man you just had to be there. No bragging intended, just a proud Pappa. I must give Jeff Andrews the credit for he did all the work on that one and did the little NFB tweak. I musnt go into details but lets just say you dont need pedals to make that one sing like a stuck pig. :eek:

    Cant wait to get this JTM45 rolling. Its gonna have a couple neat twists as well which I'll speak more of later gottat get in the bed now.
     
  15. glaswerks

    glaswerks Gold Supporting Member

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    Mallory 150's for signal

    JJ cans for filters.
     
  16. hasserl

    hasserl Member

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    Oh come on! Why would we use those cheap ass components when we can spend more for something with a cool name we can throw around on internet bbs's, like badges of honor or something. Maybe even list them in our signature. :rolleyes: :rotflmao:Devil :p
     
  17. Red Planet

    Red Planet Member

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  18. glaswerks

    glaswerks Gold Supporting Member

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    Nope, no way, ain't taking the bait.......
     
  19. TheAmpNerd

    TheAmpNerd Member

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    Oh the shame!

    HOWEVER

    There is a custom pedal guy who frequents TGP and I laughed
    my ass off when I read his sig.

    He had the WHOLE Estay Ban rig deliniated.

    AND

    Can you imagne how proud he was? He even had
    Estay Bans new higher power amp!

    NATURALLY

    I gave him a hard time about OPENING the polishing cloth that came
    with his gear. That my friends is true collectors item and should have
    remain SEALED.

    Oh the shame indeed!!!!

    Looking around for that plastic rake thing with inch long tenticles in it,
    I bought so I can get the pet hair out of the carpet...

    :eek:
     

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