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MF MD HG01 Electric Guitar Month 06-21-17
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JJ Electronics JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR  Single

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With the JJ El84 you get a combination of both great tone and reliability. This tube is characterized by sparkling highs, good mids, and a solid bott...Click To Read More About This Product

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  • Matched Pair

    $23.50 Top Rated

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  • Single

    $14.50 Top Rated

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With the JJ El84 you get a combination of both great tone and reliability. This tube is characterized by sparkling highs, good mids, and a solid bottom end. Quality construction and a low failure rate make this tube a terrific choice for any amp requiring EL84 tubes.


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Review Snapshot

by PowerReviews
JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR
 
4.6

(based on 31 reviews)

Ratings Distribution

  • 5 Stars

     

    (26)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

96%

of respondents would recommend this to a friend.

Pros

  • Good quality (22)
  • Improves sound (19)
  • Easy to use (12)
  • Functional (9)

Cons

No Cons

Best Uses

  • Practicing (10)
  • Concerts (9)
    • Reviewer Profile:
    • Experienced (17), Professional musician (8)

Most Liked Positive Review

 

Tonal Upgrade in Carvin

An amp expert in Seattle recommended JJs. I replaced the stock Sovtek tubes in a Carvin Vintage 16 with a matched pair of JJ EL84s in the power section and JJ 12AX7s in the...Read complete review

An amp expert in Seattle recommended JJs. I replaced the stock Sovtek tubes in a Carvin Vintage 16 with a matched pair of JJ EL84s in the power section and JJ 12AX7s in the preamp. The difference is impressive: The somewhat harsh tone of the low-end Sovteks has been upgraded to a rounder, fuller tone. With the V-16's "soak" control on 8 or 9 and a Tube Screamer driving the input, it's easy to dial in a Marshall-like tone.

VS

Most Liked Negative Review

 

Great Little Tube

Overall it reminds me of the old Telefunken tubes. Great highs and mids, and when driven to it's limits the distortion break up is even and dirty!
I love JJ...Read complete review

Overall it reminds me of the old Telefunken tubes. Great highs and mids, and when driven to it's limits the distortion break up is even and dirty!
I love JJ tubes, and this little guy is not an exception. I replaced the unknown tube in my Blackheart 5W head with this tube. You can get the shimmery highs, swirling mids like a Fender/Vox, while the bass can crunch right up there with a Marshall. Highly recommend this tube. It's a great little workhorse as well!
No pops, crackles or hisses. And even with the abuse one gives ones amp gigging, it still pulls through!
Not as pricey as the NOS tubes, or as the groove tube el's. Very good buy!

Reviewed by 31 customers

Displaying reviews 1-10

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(5 of 5 customers found this review helpful)

 
5.0

Tonal Upgrade in Carvin

By Ross V

from Colorado

See all my reviews

Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

An amp expert in Seattle recommended JJs. I replaced the stock Sovtek tubes in a Carvin Vintage 16 with a matched pair of JJ EL84s in the power section and JJ 12AX7s in the preamp. The difference is impressive: The somewhat harsh tone of the low-end Sovteks has been upgraded to a rounder, fuller tone. With the V-16's "soak" control on 8 or 9 and a Tube Screamer driving the input, it's easy to dial in a Marshall-like tone.

(4 of 4 customers found this review helpful)

 
5.0

Dan Zimmerman

By Dan Zimmerman

from Canton, Georgia

See all my reviews

Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

I installed these in my Peavey Classic 30 which uses 3 12AX7 and 4 EL84 tubes.
The J J's replaced the stock Sovteks which had a good bit of use on them.
I noticed an immediate difference. The amp sounded much cleaner, much more responsive.
Tonal qualities were excellent. The amp is the best it has ever sounded. Can't wait to warm up those tubes and play again
exceeded expectations
very good build quality
worth the extra money --get a great tube

(3 of 3 customers found this review helpful)

 
5.0

Tame the icepick highs

By Thomas

from Scottsdale, AZ

About Me Professional Musician

See all my reviews

Ask me a question

Verified Buyer

Pros

  • Improves Sound

Cons

    Best Uses

    • Concerts
    • Practicing

    Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

    One of the power tubes in my Blues Junior (4 months old!) failed. Put these in and Wow, that really bright glassy sound is less. This amp had that icepick sound, waaaay to bright, and these tubes tamed it. The new sound is full, fat, and rich, without the treble. I like them, and I'd buy them again.

    (3 of 3 customers found this review helpful)

     
    5.0

    Huge upgrade!

    By Kyle Williams

    from western NY

    Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

    I wouldn't have believed it would have made such an improvement if someone had told me. Just had to hear it for myself I guess!
    Whatever is going on inside that little glass vaccuum . . . keep doing it.
    I was amazed at the improvement in clarity and sparkle that this brought to my Blues Jr. To be fair, the Blues Jr is hard on tubes because of the factory biasing, so the original tubes may have just lived a short hard life.
    Good price for any quality matched tubes. But these sound better than what they cost.

    (3 of 7 customers found this review helpful)

     
    1.0

    Great Little Tube

    By Wade Kendall

    from California

    Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

    Overall it reminds me of the old Telefunken tubes. Great highs and mids, and when driven to it's limits the distortion break up is even and dirty!
    I love JJ tubes, and this little guy is not an exception. I replaced the unknown tube in my Blackheart 5W head with this tube. You can get the shimmery highs, swirling mids like a Fender/Vox, while the bass can crunch right up there with a Marshall. Highly recommend this tube. It's a great little workhorse as well!
    No pops, crackles or hisses. And even with the abuse one gives ones amp gigging, it still pulls through!
    Not as pricey as the NOS tubes, or as the groove tube el's. Very good buy!

    (2 of 2 customers found this review helpful)

     
    5.0

    A noticeable improvement over stock tube

    By Oldskool

    from Maryland

    About Me Experienced

    See all my reviews

    Ask me a question

    Pros

    • Good Quality
    • Improves Sound

    Cons

      Best Uses

      • Concerts
      • Practicing

      Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

      I have a VoxAC15 that I purchased several years ago. Was happy with sound, but then I heard about upgrading tubes to augment tone. So I took the plunge and first upgraded the tubes in the preamp section, and the difference was quite noticeable. Several months later, I decided to upgrade the power tubes to JJ EL84s, and am completely blown away with how much impact they have on overall tone and response! It is like a blanket has been lifted off my amplifier! The cheap stock tubes that came with my amp were impeding this amp's tone! I heard about this amp's "chime", but am only now truly experiencing what that truly means.

      (1 of 1 customers found this review helpful)

       
      4.0

      Great little tube!

      By TaosMax

      from Taos, New Mexico

      About Me Professional Musician

      See all my reviews

      Pros

      • Good Quality
      • Improves Sound

      Cons

        Best Uses

        • Backup
        • Concerts
        • Practicing

        Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

        This is a smooth, creamy little tube. Everyone's ear is different, but for this price, it's easy to find out if it's the right tube for you.
        I used the EL84 to replace the stock Russian tube in my harmonica amp, and it sounds like a brand new amp. I'll absolutely look to JJ again when I need tubes.

        (1 of 1 customers found this review helpful)

         
        5.0

        Good Tubes

        By Fender57

        from virginia

        About Me Professional Musician

        Pros

        • Easy To Use
        • Good Quality
        • Improves Sound

        Cons

          Best Uses

            Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

            fast shipping, good product, always use JJ tubes in my amps.

            (1 of 1 customers found this review helpful)

             
            5.0

            Used to replace stock tubes

            By Pick or Fis

            from Near Austin TX

            About Me Experienced

            See all my reviews

            Pros

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

            Cons

            • No Cons Found To Note

            Best Uses

            • Replace Orig Tubes

            Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

            This was my second Blues Junior I used these to replace the stock tubes. Result: smoothed some of the known harshness and refined the overdrive a bit. The first time the Groove Tubes were slightly worn so made a huge difference. The second amp, the tubes were very low hours so a better comparsion. Both times, tone improved, less harsh and overdriven had a more usable crunch than the stock Groove Tubes. Not a huge change but enough to be worth the trouble.

            (1 of 1 customers found this review helpful)

             
            5.0

            Solid Tubes

            By Buck

            from The Swamplands of Louisiana

            About Me Professional Musician

            See all my reviews

            Ask me a question

            Verified Buyer

            Pros

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

            Cons

            • None

            Best Uses

            • Power Amps And Recording

            Comments about JJ ELECTRONICS T EL84 JJ MP EL84 POWER VACUUM TUBE MATCHED PAIR:

            I use these in quite a few of my amps and recording gear just make sure to re-bias when changing your power tubes in any gear they are all a little different

            Displaying reviews 1-10

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