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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

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    $15.00
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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
 
4.4

(based on 28 reviews)

Ratings Distribution

  • 5 Stars

     

    (20)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

96%

of respondents would recommend this to a friend.

Pros

  • Improves sound (19)
  • Good quality (18)
  • Easy to use (10)
  • Functional (10)

Cons

    Best Uses

    • Practicing (13)
    • Concerts (12)
    • Back-up (6)
      • Reviewer Profile:
      • Experienced (11), Professional musician (10)

    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 28 customers

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    Displaying reviews 1-10

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    5.0

    12AX7 / ECC83 Preamp Vacuum Tube

    By organ king

    from Pittsfeid,Me

    About Me Experienced

    Pros

    • Functional
    • Good Quality
    • Improves Sound

    Cons

      Best Uses

      • Concerts

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

      They brought life back my 1950's Hammond organ

      Comment on this review

       
      5.0

      Marshall preamp tubes

      By Marshall Rocks

      from Rockford, Il.

      About Me Professional Musician

      Pros

      • Good Quality
      • Improves Sound
      • Nice Breakup

      Cons

        Best Uses

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

          I had these tubes installed in my Marshall MA50 and it sounds awesome! Good quality and price. If you own a tube amp and play a lot, tubes need replacing from time to time. My amp sounds better than it ever did.

          Comment on this review

           
          5.0

          Great Sounding Tubes!!!

          By jetflyr

          from Cincinnati, OH

          About Me Experienced

          Ask me a question

          Pros

          • Good Quality
          • Great price
          • Improves Sound

          Cons

            Best Uses

            • Concerts
            • Practicing

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

            To my ear these sound every bit as good as the GTs. All for a lot less cost. JJ will certainly get more of my business in the future.

            Comment on this review

             
            5.0

            works

            By wozz

            from wisconsin woods

            About Me Professional Musician

            Ask me a question

            Pros

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

            Cons

              Best Uses

              • Concerts
              • Practicing

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

              Put one of these in my Super Champ XD and it sounds good,,I went all JJ's in the SC and it sounds good,,made the amp sound a bit different,,but in a good way

              Comment on this review

               
              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

                (2 of 2 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 3 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

                            Displaying reviews 1-10

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