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MF MD HG Labor Day Inclusion 8-22-14

Electro-Harmonix 12AX7EH Preamp Tube  

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SKU 
#210088000000000
  • MSRP:
    $22.17
  • Your Savings:
    - $8.78
  • Your Price:
    $1339

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Electro-Harmonix

The Electro-Harmonix 12AX7EH is a preamp tube that provides high gain with ultra low noise. The tube's detailed, musical tone rivals the most desirable NOS types. Unique spiral filament eliminates the filament-to-cathode induced hum common on amps that use AC on the filaments.


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Customer Reviews
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Review Snapshot®

by PowerReviews
Electro-Harmonix12AX7EH Preamp Tube
 
4.1

(based on 34 reviews)

Ratings Distribution

  • 5 Stars

     

    (20)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (4)

77%

of respondents would recommend this to a friend.

Pros

  • Easy to use (7)
  • Good quality (7)
  • Functional (6)
  • Improves sound (5)

Cons

    Best Uses

    • Concerts (8)
    • Back-up (7)
    • Practicing (7)
      • Reviewer Profile:
      • Experienced (8), Professional musician (4)

    Most Liked Positive Review

     

    Better than Average Tube

    Excellent tubes for alot of applications!
    I've been playing around and using Tube Amps for more than 30 years now. I have tried just about every 12AX7 or 12AX7 family of tubes...Read complete review

    Excellent tubes for alot of applications!
    I've been playing around and using Tube Amps for more than 30 years now. I have tried just about every 12AX7 or 12AX7 family of tubes available. These are very good tubes, If used in the right amp. What I have found is every amp, even the same models of the same brands are different in the way they respond to tubes. This means that you have to experiment to find what sounds good to you in your amp. I put one of these in the V1 in my Fender HRD and it was very "glassy" and articulate, however almost brittle sounding. Too much so for me. I then put it in my Kustom 5H Defender I just got too long ago from Musicians Friend and it was fantastic sounding! With that amp it sounds warm, clear and has just the right amount of clarity and growl at the same time. Incidentally I also tried this tube with the Gold pins which costs about $5.00 more. The Gold Pin tube is warmer, which is good for a bright amp, but in a naturally darker sounding amp like my Bassman it sounded Muddy. The original EH 12AX7 here though was great! My advice is to experiment within your budget and keep these tubes in mind as a great starting point!
    Very Well made tube!
    Very appropiate pricing in today's market! I do wish Musicians Friend would explain their grading system on tubes though, it is very different from other tube supplier's websites. Musicians Friend has very competitive pricing with everyone else, sometimes better, but their grading system is confusing when you are used to terms like "Balanced Triodes", "Matched and balanced" etc. Soft and hard really doesn't tell you much.

    VS

    Most Liked Negative Review

     

    Good Tube

    Seems to be a good tube for the money. Output is average. Very nice balanced sound. No frequencies stuck out like a sore thumb. I have only had these tubes for a week...Read complete review

    Seems to be a good tube for the money. Output is average. Very nice balanced sound. No frequencies stuck out like a sore thumb. I have only had these tubes for a week and already have 30+ hours on them.
    It's a pre amp tube. Not too many features
    All of them I ordered have worked good and are pretty quiet. In terms of white noise
    Good tube for the money. I have used tubes that have cost way more and this one is pretty good, and priced competitively.

    Reviewed by 34 customers

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    Displaying reviews 1-10

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    (1 of 2 customers found this review helpful)

     
    4.0

    The tubes arrived undamaged, and on time

    By k-bone

    from Lapeer, Michigan

    About Me Professional Musician

    Pros

      Cons

        Best Uses

          Comments about Electro-Harmonix 12AX7EH Preamp Tube:

          The tubes arrived on time, unscathed and worked perfectly.

          Comment on this review

          (1 of 1 customers found this review helpful)

           
          4.0

          Buy these Not that

          By Lilpbass

          from Small Town, USA

          About Me Experienced

          Pros

          • Good Quality
          • Russian

          Cons

            Best Uses

            • Backup
            • Concerts
            • Practicing

            Comments about Electro-Harmonix 12AX7EH Preamp Tube:

            New Sensor Corp. ie Electro Harmonix manufactures ALL tubes that come from Russia. That would include EH, JJ, Genalex, Mullard, Northern Electric....then someone else makes all the Chinese tubes: Shuguang, Ruby...I figure a Russian is a Russian. These work just fine, they are middle of the road on price. I did put Duente Criatura rings on them. I noticed more harmonics on the top end and a small amount of clarity gained on the bottom.

            Comment on this review

             
            1.0

            Microphonic after 3 weeks

            By Sounds Underground

            from Chandler, AZ

            About Me Professional Musician

            Ask me a question

            Pros

              Cons

                Best Uses

                  Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                  I have 3 of these in my USA SVT-CL Ampgeg head. After just a few weeks of moderate playing both preamp tubes became microphonic and the driver tube had a nasty 60hz hum.

                  Comment on this review

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Warm Tube with Great Harmonics

                  By Mr. Guitar

                  from Appomattox, Va

                  About Me Experienced

                  Ask me a question

                  Pros

                  • Easy To Use
                  • Functional
                  • Good Quality
                  • Great harmonics
                  • Improves Sound
                  • Warm tone

                  Cons

                  • May Get Muddy
                  • May Sound Muddy

                  Best Uses

                  • Backup
                  • Concerts
                  • Overdrive Channel
                  • Overly Bright Amplifier
                  • Practicing

                  Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                  I have a Fender Super Champ XD and Fender Deluxe Vintage Modified. I'm not an electronics expert so I can't tell you why, but !!!! I don't care for these amplifiers with any other preamp tube. This tube really wakes the VM series amps up. The Super Champ XD only uses one 12AX7 and I only replaced the preamp tube closest to the input jack on the Deluxe VM. This was money well spent, these amps now SOUND GREAT !!!

                  Comment on this review

                   
                  4.0

                  great tube

                  By goldtop1061

                  from sgf,mo

                  About Me Experienced

                  Ask me a question

                  Verified Buyer

                  Pros

                  • Easy To Use
                  • Good As Any

                  Cons

                  • Any Tube Can Fail

                  Best Uses

                  • Concerts
                  • Mesa Nomad

                  Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                  dont waste your money on high priced tubes, a russian tube is a russian tube,who cares what name they have on them they all come from the same factory anyway ! some test better than others its a roll of the dice & these work as good as any i've used

                  Comment on this review

                   
                  4.0

                  Tubes ok, but poor packing

                  By Bk

                  from South

                  About Me Professional Musician

                  Ask me a question

                  Verified Buyer

                  Pros

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

                  Cons

                    Best Uses

                      Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                      Just like the title - tubes were ok, but there was almost no packing so they rattled around in the box. I'm surprised they still worked!

                      Comment on this review

                      (0 of 1 customers found this review helpful)

                       
                      5.0

                      Great Tube

                      By blacksuit41314

                      from Booneville, KY

                      About Me Experienced

                      Pros

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

                      Cons

                      • None

                      Best Uses

                      • Backup
                      • Concerts
                      • Practicing

                      Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                      I replaced the stock ECC83 in a Marshall AVT 100 combo with this EH 12ax7 and WOW what a difference.

                      Comment on this review

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      nice rounded tone

                      By tenpennygrin

                      from Maine

                      About Me Experienced

                      Verified Buyer

                      Pros

                      • Good Quality
                      • Improves Sound

                      Cons

                        Best Uses

                        • Backup
                        • Concerts
                        • Practicing

                        Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                        just put a complete set of eh tubes in my peavey classic 30 and it sounds better than it has in a long time. Nice clean tone and nice thick dirty channel and no wierd noises...awesome

                        Comment on this review

                        (0 of 3 customers found this review helpful)

                         
                        3.0

                        Sounds sort of like a fuzz box

                        By Charles Bradford

                        from Onalaska Texas

                        About Me Experienced

                        Ask me a question

                        Pros

                        • Easy To Use
                        • Functional

                        Cons

                          Best Uses

                          • Backup
                          • Concerts
                          • Practicing

                          Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                          They're kind of fuzzy, I'm going back to GT

                          Comment on this review

                          (1 of 2 customers found this review helpful)

                           
                          4.0

                          Nothin' Special

                          By Charles Bradford

                          from Onalaska Texas

                          About Me Experienced

                          Ask me a question

                          Pros

                          • Easy To Use
                          • Functional
                          • Good Quality

                          Cons

                            Best Uses

                            • Backup
                            • Concerts
                            • Practicing

                            Comments about Electro-Harmonix 12AX7EH Preamp Tube:

                            They're good tubes

                            Comment on this review

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