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MF MD HG 24 Equal Payments 11-19-14
Top Rated
SKU 
H70064 000000000

JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube  

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This 12AX7/ECC83 preamp tube has a well-balanced, colorful tone with strongly defined lows and mids and smooth highs. It allows for more clean headro...Read More

  • MSRP:
    $15.00
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    - $2.31
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  • Your Price:
    $1269

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This 12AX7/ECC83 preamp tube has a well-balanced, colorful tone with strongly defined lows and mids and smooth highs. It allows for more clean headroom than higher gain 12AX7s.


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Review Snapshot®

by PowerReviews
JJ Electronics12AX7 / ECC83 Preamp Vacuum Tube
 
4.3

(based on 24 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

95%

of respondents would recommend this to a friend.

Pros

  • Improves sound (15)
  • Good quality (14)
  • Easy to use (9)
  • Functional (8)

Cons

    Best Uses

    • Practicing (11)
    • Concerts (9)
    • Back-up (6)
      • Reviewer Profile:
      • Experienced (9), Professional musician (8)

    Most Liked Positive Review

     

    My tone has been reborn!

    I am a bass player and its hard to decide on which tube to choose when you buy your first tube amp. I have had this amp 4 yrs and never needed a tube...Read complete review

    I am a bass player and its hard to decide on which tube to choose when you buy your first tube amp. I have had this amp 4 yrs and never needed a tube until now. I originally purchased a tube of another brand and chose solely on the reviews and ratings and cost a few dollars more. It took away all the characteristics that made my favorite amp what it is. So I blindly bought these JJ tubes on the advice of a friend and I am completely happy. Owners manual called for a Groove Tube but I wanted something else and a Mesa tube was in my amp but I wanted to order from MF and I didnt see any Mesa tubes here. I am very happy!

    My low ends are back!! My lo mids are back and my attack is all there again. I love the way the gain can make the sound flow or growl. I have a hot set up in my bass and the other tube I put in, it took all of what I loved about bass amp away. It took out all my lower freqs. And my tone was tinnier with a slight ring to it. But after some major eq tweeks I was able to get it almost acceptable. But this JJ tube brought my eq settings back into the ballpark and gave me more of what I have been missing for a couple years now.

    VS

    Most Liked Negative Review

     

    made my amp sound awful

    As we all know, different tubes sound good in different amps. I would just personally not recommend this tube for a Mesa Dual Rec. I changed out all my preamp tubes with the...Read complete review

    As we all know, different tubes sound good in different amps. I would just personally not recommend this tube for a Mesa Dual Rec. I changed out all my preamp tubes with the jj's and it made the amp sound extremely noisy, fizzy and thin. I switched back to some mesa tubes and problem solved. Maybe I just got a bad set or something because jj's are supposed to be pretty good from what I hear. Also, Musiciansfriend really needs to change how they ship tubes. One of the tubes came to me already broken.

    Reviewed by 24 customers

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    Displaying reviews 1-10

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    5.0

    Bass Pre Amp

    By Funkybassist

    from Texas

    About Me Experienced

    Ask me a question

    Pros

    • Easy To Use
    • Functional
    • Good Quality
    • Improves Sound

    Cons

      Best Uses

      • Sound Enhancement

      Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

      Have a Bugera BVP5500 bass amp that randomly just stopped working. Couldn't figure it out so i replaced the tubes and bam it was back. Not only was it back but sounded way better! Before, when you turned the tube drive knob, it would give it a lil presence but not much. Now, you can really tell the difference. I fell back in love with this low cost monster of an amp. Give these tubes a try if you were in the same situation as me with a failing amp or if you just want to give your amp a lol more presence, you won't be disappointed!

      Comment on this review

      (1 of 1 customers found this review helpful)

       
      5.0

      Overall better sound with these tubes

      By bountyhunter

      from Cedar lake In

      Pros

      • Good Quality
      • Improves Sound

      Cons

        Best Uses

        • Epiphone Valve Jr Sounds
        • Practicing
        • Work Great In A Epiphone

        Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

        I put this tube in my epiphone valve jr. and heard the difference right away.Less muddy sounding

        Comment on this review

        (0 of 2 customers found this review helpful)

         
        5.0

        Great pre amp tubes

        By Jeddy Boy

        from Lebanon, OR

        About Me Experienced

        Verified Buyer

        Pros

        • Easy To Use
        • Functional
        • Good Quality
        • Improves Sound

        Cons

          Best Uses

          • Concerts
          • Practicing

          Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

          These tubes are very cost effective.

          Comment on this review

          (1 of 1 customers found this review helpful)

           
          4.0

          Smooth output

          By Goobie Jones

          from Rome, NY

          About Me Professional Musician

          Ask me a question

          Verified Buyer

          Pros

          • Good Quality
          • Improves Sound

          Cons

            Best Uses

            • Backup
            • Concerts
            • Practicing

            Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

            I mostly play through single stroke class A amplifiers with no frills. Having a good quality tube really stands out. The JJ Tesla's seem to be the better tube considering the fact that there are only 3 manufacturers making tubes. Went through several pre and power amp tubes recently relatively quick. Switch over to JJ Teslas and have had no issues. Full, thick signal with no noise. FYI: These are Groove Tubes' R3s.

            Comment on this review

            (1 of 1 customers found this review helpful)

             
            5.0

            Improved Sound !!!

            By Kailash soundz

            from Ljubljana. Slovenia

            About Me Professional Musician

            Ask me a question

            Verified Reviewer

            Pros

            • Easy To Use
            • Functional
            • Good Quality
            • Improves Sound

            Cons

              Best Uses

              • Concerts
              • Practicing

              Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

              I am professional musician with over 7 years of active concerting and recording. I have replaced pre amp valve in my Bugera V5, took out stock and put in JJ. Better and stronger sound but in a good way. Stronger clean and more full overdrive. Very Happy !

              Comment on this review

              (2 of 2 customers found this review helpful)

               
              5.0

              Cleaner, crisper.

              By Antprs24

              from Texas

              About Me Professional Musician

              Verified Buyer

              Pros

              • Easy To Use
              • Good Quality
              • Great Tone Possibilities
              • Improves Sound

              Cons

                Best Uses

                  Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

                  I bought these tubes to replace the stock Chinese tubes in a preamp (ART mpa II) and it sounds MUCH better. I'll definitely buy more of these to replace tubes in other gear.

                  Comment on this review

                  (1 of 1 customers found this review helpful)

                   
                  3.0

                  Waste of my time

                  By RW65

                  from New York

                  About Me Professional Musician

                  Ask me a question

                  Pros

                  • Functional

                  Cons

                  • Tone Very Bassy

                  Best Uses

                  • Backup
                  • Concerts
                  • Practicing

                  Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

                  Ok, everyone likes a certain type of tone. When i pulled the generic tubes from my Peavey Classic 30 i can tell you two things. Power increased (which was fine). However all the highs and overtones were lost. If you will be using alot of distortion, than this is your tube. But for clean playing or versatilty in rhythm playing, i would not recommend this.Its just real dark and bassy.

                  Comment on this review

                  (0 of 2 customers found this review helpful)

                   
                  1.0

                  Unexpected Failure

                  By John Anthony

                  from Del Norte Co., CA

                  About Me Experienced

                  Verified Buyer

                  Pros

                    Cons

                    • Not Functional
                    • The Jj 12ax7 Failed Fast

                    Best Uses

                      Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

                      The JJ Electronics 12AX7 preamp tube failed within minutes of operation in an Alesis Mic Tube Solo Preamp. This tube is not favored for tone over the China 12AX7 which was reinstalled.

                      Comment on this review

                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Great tube

                      By Shadowrath

                      from Los Angeles, CA

                      About Me Professional Musician

                      Verified Buyer

                      Pros

                      • Easy To Use
                      • Functional
                      • Good Quality
                      • Improves Sound

                      Cons

                        Best Uses

                        • Backup
                        • Concerts
                        • Practicing

                        Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

                        The tube worked great out of the box...no problems, no hassles...as a test I used it as the first pre-amp tube in my Dual Recto and it sounds fantastic....right away gave a boost to my amp.

                        Comment on this review

                        (1 of 2 customers found this review helpful)

                         
                        5.0

                        Sweet

                        By freefllan2dz

                        from Houston, TX

                        About Me Novice

                        Pros

                        • Good Quality
                        • Improves Sound

                        Cons

                          Best Uses

                          • Backup
                          • Practicing
                          • Zoom G92tt

                          Comments about JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube:

                          I bought 2 of these and put in my Zoom G9.2tt pedal. The stock tubes that came in it were starting to give me some dreadful feedback and the tone was muffled. I originally bought GT-12ax7-C and the GT-12ax7-R2 on advice from an internet article and maybe I just got a bad pair or maybe the matching was not right but they did little to correct the issue. So, not knowing if the tubes were the issue I took a chance and ordered 2 of the JJ's and I couldn't be happier.

                          Comment on this review

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