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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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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 37 reviews)

Ratings Distribution

  • 5 Stars

     

    (26)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

97%

of respondents would recommend this to a friend.

Pros

  • Good quality (26)
  • Improves sound (26)
  • Easy to use (14)
  • Functional (14)

Cons

No Cons

Best Uses

  • Practicing (15)
  • Concerts (13)
  • Back-up (8)
    • Reviewer Profile:
    • Experienced (20), 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 37 customers

Displaying reviews 1-10

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5.0

JJ pre amp tubes

By 

from Maryland

About Me Experienced

Verified Buyer

Pros

  • Improves Sound

Cons

    Best Uses

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

      These tubes worked great on my Marshall TSL 100 Triple lead....Improved tone greatly over stock tubes,along with Mullard medium green Quartet I also installed...I get that bite,clean,gritty,heavenly growl thru a Les Paul.No Problems here

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      4.0

      Good replacment tube

      By 

      from NJ

      About Me Experienced

      Verified Buyer

      Pros

      • Good Quality

      Cons

        Best Uses

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

          Replaced the stock tubes in my Marshall . They sound good

          Comment on this reviewHelp Icon

          (1 of 1 customers found this review helpful)

           
          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.

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              (1 of 1 customers found this review helpful)

               
              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 $$$$$.

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                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 reviewHelp Icon

                     
                    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 !

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                      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 reviewHelp Icon

                           
                          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 reviewHelp Icon

                             
                            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 reviewHelp Icon

                                 
                                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 reviewHelp Icon

                                  Displaying reviews 1-10

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