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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 40 reviews)

Ratings Distribution

  • 5 Stars

     

    (28)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

97%

of respondents would recommend this to a friend.

Pros

  • Good quality (27)
  • Improves sound (27)
  • Easy to use (16)
  • Functional (16)

Cons

No Cons

Best Uses

  • Practicing (15)
  • Concerts (13)
  • Back-up (8)
    • Reviewer Profile:
    • Experienced (21), 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 40 customers

Displaying reviews 1-10

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5.0

I plan on buying these tubes again.

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

Great tubes for Metal type music.

Comment on this reviewHelp Icon

 
5.0

HT1 tubes

By Marc55

from Cincinnati

About Me Novice

Pros

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

Cons

    Best Uses

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

      I replaced the tubes in my one watt HT amp with this tube and an E CC 82 of the same brand. I am very satisfied. Clean channel has a soft break up past noon and never gets too dirty. The dirt channel has a nice classic hard rock sound. The amp remains quiet, yet very responsive. Oh, and the amp can still get very loud. For about thirty Washingtons for both tubes, I couldn't pass up the value.

      Comment on this reviewHelp Icon

       
      4.0

      Bright and Crispy

      By Trfsrfr

      from Phoenix, AZ

      About Me Experienced

      Verified Buyer

      Pros

      • Easy To Use
      • Functional

      Cons

        Best Uses

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

          I bought this tube for a Marshall 8200. It now has a very crispy, crunchy, bright tone that I haven't heard in awhile. However, I also did some needed maintenance and took a can of contact cleaner to all of my pots, including my guitars, so I am sure that contributed to the tone as well. But my amp rocks again, the price was right, and delivery took about a week, so I am happy.
          Now we'll see how long it lasts.

          Comment on this reviewHelp Icon

           
          5.0

          JJ pre amp tubes

          By P Dub

          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 Lefty

              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 stratsncats-meluv

                  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 rudie

                      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 RetroTeleRod

                        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 Nateh107

                            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 Jojo

                              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!

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                                  Displaying reviews 1-10

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