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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

  • MSRP:
    $15.00
  • Your Savings:
    - $0.01
  • Shipping (48 Contiguous U.S. States)
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  • Your Price:
    $1499

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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
 
4.5

(based on 35 reviews)

Ratings Distribution

  • 5 Stars

     

    (25)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

97%

of respondents would recommend this to a friend.

Pros

  • Good quality (25)
  • Improves sound (25)
  • Easy to use (14)
  • Functional (14)

Cons

No Cons

Best Uses

  • Practicing (15)
  • Concerts (13)
  • Back-up (8)
    • Reviewer Profile:
    • Experienced (18), 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 35 customers

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Displaying reviews 1-10

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5.0

Great tubes - great price!

By 

from Jacksonville, Florida

About Me Experienced

Pros

  • Good Quality
  • Improves Sound

Cons

    Best Uses

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

      Wanted a good solid sound but not agressive at a reasonable cost. Installed in V2 the J.J Ax7 did the job masterfully. After tweaking I arrived at my amps ZEN sound; (with a J.J. Au7 in V4) the tone -sweet lush tube O.D. super crisp and crunchy also adds to presence. Price vs quality is the dealmaker! just what I was looking for. As usual MF has the price and greatest service.

      Comment on this review

       
      4.0

      Good value

      By 

      from western mass

      About Me Experienced

      Ask me a question

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Practicing

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

        I bought this tube to replace the stock Bugara tube in my Behringer Vintage OD pedal. It definately provided a nice creamy, musical sound although gain was much lower which wasn't a real issue, I just had to turn up the drive to match the amp. It was a nice improvement in overall sound for not much $$$$$.

        Comment on this review

         
        5.0

        Great Tubes!

        By 

        from Oklahoma

        About Me Experienced

        Pros

        • Good Quality
        • Improves Sound

        Cons

          Best Uses

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

            I put a complete set of JJs in my Vox AC-15 last week and they really opened up the sound of this amp. They are a great value considering the significant improvement they will make to your tone.

            Comment on this review

             
            5.0

            Great sounding tubes

            By 

            from Northern New England

            About Me Experienced

            Ask me a question

            Pros

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

            Cons

              Best Uses

              • Backup

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

              Originally from another store I bought this tube in high and mid gain for my Marshall DSL50 but did not work out . Ordered these from MF sounds much better to my ears amazing what a new set of tubes can do for your tone !

              Comment on this review

               
              4.0

              JJ 12AX7

              By 

              from Ohio Valley

              About Me Experienced

              Pros

              • Good Quality

              Cons

                Best Uses

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

                  Bought the JJ and a TungSol 12ax7. They replaced an old Hot Rods tube in a Crate TD50c. Both tubes do the job. The JJ seems to have more soul (creamy?) than the TS. The TS seems to have more crispness\clarity. I'm gonna stick with the Tungsol for the moment but have no qualms about using the JJ in my amp. Keep on rockin!

                  Comment on this review

                   
                  5.0

                  Great tubes!

                  By 

                  from Florida

                  About Me Experienced

                  Pros

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

                  Cons

                    Best Uses

                    • Backup
                    • Concerts
                    • Practicing

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

                    Looked at tubes for awhile before buying them. Wanted a good solid sound but was on a budget. These brought my sound alive again. Super crisp and great presence. Price vs quality is awesome

                    Comment on this review

                     
                    5.0

                    JJ Tubes

                    By 

                    from USA

                    About Me Experienced

                    Ask me a question

                    Pros

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

                    Cons

                      Best Uses

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

                        I'm always happy with JJ's...these tubes have great tone and aren't ridiculously over-priced.

                        Comment on this review

                         
                        5.0

                        12AX7 / ECC83 Preamp Vacuum Tube

                        By 

                        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 

                          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 

                              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

                                Displaying reviews 1-10

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