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JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube

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Product H70063
Starting Price: $13.98
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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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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 ElectronicsT EL84 JJ MP EL84 Power Vacuum Tube
 
4.6

(based on 38 reviews)

Ratings Distribution

  • 5 Stars

     

    (31)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

91%

of respondents would recommend this to a friend.

Pros

  • Good quality (26)
  • Improves sound (22)
  • Easy to use (13)
  • Functional (12)

Cons

No Cons

Best Uses

  • Practicing (12)
  • Concerts (11)
  • Back-up (3)
    • Reviewer Profile:
    • Experienced (23), Professional musician (10)

Most Liked Positive Review

 

Work well for me!

Replaced the OEM power tubes in my Bugera V22HD, because one tube crunched out. Bugera said they don't know what the problem is, so return it. Well I prefer to just fix...Read complete review

Replaced the OEM power tubes in my Bugera V22HD, because one tube crunched out. Bugera said they don't know what the problem is, so return it. Well I prefer to just fix stuff, so I bought a matched pair of these, and after 2 months of play I can say they're great.

VS

Most Liked Negative Review

 

The tubes I bought didn't work

I didn't try the tubes right away and when I did, my amp didn't work. I didn't know why. I. was going to take it to get repaired. Then I thought of...Read complete review

I didn't try the tubes right away and when I did, my amp didn't work. I didn't know why. I. was going to take it to get repaired. Then I thought of seeing if the tubes light up when the amp is turned. The two new tubes didn't. The other three did. So the problem is apparently that the two EL 84 tubes I bought don't work.

Reviewed by 38 customers

Displaying reviews 1-20

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(6 of 6 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:

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

(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:

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

Huge upgrade!

By Kyle Williams

from western NY

Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

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 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:

    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.

    (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:

      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)

       
      5.0

      Great service!

      By midirons

      from Alabama Gulf Coast

      About Me Experienced

      Verified Buyer

      Pros

      • Easy to install
      • Easy To Use
      • Functional
      • Good Quality

      Cons

        Best Uses

        • Practicing
        • Small gigs

        Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

        Used as replacement for stock EL84's. They sound fine as stock tubes were going bad.

        (1 of 2 customers found this review helpful)

         
        5.0

        Very nice Groove Tube replacement

        By Mr Greg

        from Philadelphia,PA

        About Me Experienced

        Verified Buyer

        Pros

        • Functional
        • Improves Sound

        Cons

          Best Uses

          • Backup
          • Practicing

          Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

          Great replacement for blown OEM Groove Tube...Takes a bit of wiggling with 9 pins to get old off and new on..I would wear cotton gloves or wrap in micro fiber towel. Eye protection not a bad idea..My old ones were cracked and white at the bottom....

          (1 of 1 customers found this review helpful)

           
          5.0

          Work well for me!

          By Buffalo_BiL

          from New Buffalo, MI

          About Me Professional Musician

          See all my reviews

          Ask me a question

          Verified Reviewer

          Pros

          • Good Quality
          • Low price

          Cons

            Best Uses

            • Chimey clear
            • Heavy Overdrive
            • Replacement

            Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

            Replaced the OEM power tubes in my Bugera V22HD, because one tube crunched out. Bugera said they don't know what the problem is, so return it. Well I prefer to just fix stuff, so I bought a matched pair of these, and after 2 months of play I can say they're great.

            Service and delivery comments:

            Quick shipping!

            (1 of 1 customers found this review helpful)

             
            5.0

            My New Favorite

            By tominorlando

            from florida

            About Me Experienced

            Pros

            • Functional
            • Good Quality
            • Improves Sound

            Cons

              Best Uses

                Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                I've just finished my latest round of tube rolling after buying these JJ's. Results are impressive. Using a Hughes & Kettner Tubemeister 18 30th Anniversary model amplifier, JJ tubes have an excellent organic tone with smooth break-up when overdriven and cut through the mix very well.

                (1 of 1 customers found this review helpful)

                 
                5.0

                Great Tubes

                By Crop

                from Wilmington

                About Me Experienced

                See all my reviews

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                Verified Buyer

                Pros

                • Improves Sound

                Cons

                  Best Uses

                  • Concerts

                  Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                  Replaced the OE Chinese tubes in a Vox AC15C1 and what an amazing difference it sound

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  JJ's for the Win

                  By P-Jo the Laser

                  from Bellingham, WA

                  About Me Experienced

                  See all my reviews

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                  Verified Buyer

                  Pros

                  • Good Quality
                  • Improves Sound

                  Cons

                    Best Uses

                      Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                      Replaced the stock Chinese tubes in my Vox AC10c1 with a matched set of JJ's, it used to sound good now it sounds great.

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      Will definitely purchase these again and again.

                      By Johnny Winter

                      from N.O.LA.

                      About Me Experienced

                      See all my reviews

                      Verified Buyer

                      Pros

                      • Good Quality
                      • Improves Sound

                      Cons

                        Best Uses

                          Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                          I have used JJ tubes in a home built amp, a Carvin X60 these were for a Fender Pro Jr. They have lasted a long time and after installing in each amp the amp's tone improved greatly. Much warmer and musical sounding. Remember though sound and tone is subjective to the listener and these may not be for everyone, but I am pleased with these and so is everyone that hears them. I get several compliments on the tone. I double checked the matched sets with a tube tester and they were perfectly matched.

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          Would buy again

                          By heathbar

                          from Swansea, IL

                          About Me Experienced

                          See all my reviews

                          Verified Buyer

                          Pros

                          • Easy To Use
                          • Good Quality
                          • Improves Sound

                          Cons

                            Best Uses

                              Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                              Replaced all the tubes in a Tubemeister 18 with JJ's. Warmed up the sound and perhaps a little more headroom. A very good value and a great improvement.

                              (1 of 1 customers found this review helpful)

                               
                              5.0

                              Good Replacement for Vox AC15C1

                              By ElectricUrinal

                              from Kansas

                              About Me Professional Musician

                              See all my reviews

                              Verified Reviewer

                              Pros

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

                              Cons

                                Best Uses

                                • Concerts
                                • Practicing

                                Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                                Got a matched pair of these JJ EL84 tubes for a Vox AC15C1. Each box had a sticker with a print-out of the matched parameters... so you can see they match. Instant improvement over stock Chinese tubes (I also got 3 Tung Sol 12ax7 tubes at the same time as these). Much warmer overall... more brilliant but less spiky. I'd go with the JJ/Tung Sol combo again in the AC15.

                                (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:

                                  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:

                                      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 Pickorfish

                                      from Central Texas

                                      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:

                                      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

                                      Improved the sound Quality

                                      By bountyhunter

                                      from Cedar lake In

                                      About Me Experienced

                                      See all my reviews

                                      Pros

                                      • Good Quality
                                      • Improves Sound

                                      Cons

                                        Best Uses

                                        • Practicing

                                        Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                                        Works great in my valve jr

                                        (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:

                                        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

                                        (1 of 1 customers found this review helpful)

                                         
                                        5.0

                                        BEST TONE FOR THE MONEY

                                        By ROCKING RON

                                        from West Dundee/ near Chicago Il.

                                        About Me Experienced

                                        See all my reviews

                                        Ask me a question

                                        Verified Buyer

                                        Pros

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

                                        Cons

                                          Best Uses

                                            Comments about JJ Electronics T EL84 JJ MP EL84 Power Vacuum Tube:

                                            This is a top Tube I tried Groove Tubes what a let down. I bought a Marshall JCM 900 the prior owner used JJ Pre-Amp tubes and my Marshall Kills.So I tried JJ power Tubes on a VHT a Great Tube More Power and Tone. I wish I could say I found these on my own but JJ Tubes Pre-Amp or Power Tubes and Sovteks is all I will use. I work on many Tube amps these ROCK!

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