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Mullard 12AX7 Preamp Tube  

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Mullard

The Mullard 12AX7 Preamp Tube delivers a large sound stage with excellent detail. Factory selected for low noise and minimum microphonics.


Order tubes BEFORE they need to be replaced, and save the gig.

 
Customer Reviews
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Review Snapshot®

by PowerReviews
Mullard12AX7 Preamp Tube
 
4.3

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

67%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Good Tube

I have to agree with the guy who said its a waste of time and also misleading to compare these to the Phillips made Mullards of the 50's and 60's; NOTHING ever...Read complete review

I have to agree with the guy who said its a waste of time and also misleading to compare these to the Phillips made Mullards of the 50's and 60's; NOTHING ever made is as good as those tubes were. That said, this Mullard from New Sensor is a pretty good tube. Somewhat mild in the gain department,(but not too mild) very clear overall presence. I do hear just a bit of the sound of an original phillips Amperex in these when they are over driven - good detail with a bit of the crunchiness and bite of those awesome 12ax7's. To clear up the "rebranding" confusion, these ARE NOT "rebranded" tubes. These tubes are NOT sold under any other brand name.They are made by New Sensor (an American Company) in Russia. New Sensor Owns the Mullard, Tung - Sol, Electroharmonix, Svetlana and Sovtek brands, just as Royal Phillips once owned Amperex, Mullard, Valvo and several other brand names. In my opinion and based on my trial and error experience, This is one of the better sounding 12AX7 tubes currently being made. I think it's probably best suited to Hi-Fi systems but i like them and use in them in My guitar amps. To me, they sound best in Fender and VOX amps, where a very clear clean tone with a bright high end is wanted. They sound good in Amps driving EL84 power tubes.

VS

Most Liked Negative Review

 

HORRIBLE TUBES

I purchased these tubes to use in my Matchless Phoenix amp, which takes three 12ax7's in the pre-amp and phase inverter. The owner of Matchless, Phil Jamison advised me not to use...Read complete review

I purchased these tubes to use in my Matchless Phoenix amp, which takes three 12ax7's in the pre-amp and phase inverter. The owner of Matchless, Phil Jamison advised me not to use these tubes because they were not of acceptable sound quality and prone to failure. I was curious though how they compared to NOS Mullards, so I got them anyway.

Sure enough, after installing them, they sound lifeless and boring. Very flat, tonally. Even in a bright amp, they just simply sound bad. There is nothing pleasing about the tone of these tubes.

Much to my surprise, the amp builders at Matchless were correct and the tubes both FAILED within three days of using them. I slowly started noticing a loss in volume each time I played. Now, they are both completely dead. Just a dull, faint muddy/thin tone can be heard when cranking the volume up.

Terribly disappointing. I had high hopes for these tubes being possibly decent. I can only give one word of advice now... AVOID.

Reviewed by 11 customers

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(1 of 1 customers found this review helpful)

 
1.0

HORRIBLE TUBES

By Ryan

from Los Angeles, CA

About Me Professional Musician

Pros

    Cons

    • Not Functional
    • Poor Quality

    Best Uses

      Comments about Mullard 12AX7 Preamp Tube:

      I purchased these tubes to use in my Matchless Phoenix amp, which takes three 12ax7's in the pre-amp and phase inverter. The owner of Matchless, Phil Jamison advised me not to use these tubes because they were not of acceptable sound quality and prone to failure. I was curious though how they compared to NOS Mullards, so I got them anyway.

      Sure enough, after installing them, they sound lifeless and boring. Very flat, tonally. Even in a bright amp, they just simply sound bad. There is nothing pleasing about the tone of these tubes.

      Much to my surprise, the amp builders at Matchless were correct and the tubes both FAILED within three days of using them. I slowly started noticing a loss in volume each time I played. Now, they are both completely dead. Just a dull, faint muddy/thin tone can be heard when cranking the volume up.

      Terribly disappointing. I had high hopes for these tubes being possibly decent. I can only give one word of advice now... AVOID.

      Comment on this review

       
      5.0

      Huge Improvement for my 30W amp head

      By chetzki

      from Texas

      About Me Novice

      Verified Buyer

      Pros

      • Improves Sound

      Cons

        Best Uses

          Comments about Mullard 12AX7 Preamp Tube:

          I replaced all (5) of my original Egnater 30W amp head pre-amp tubes with these Mullard's. The original tubes gave me a "muddy" sound. These tubes give me better sound definition. More clearly defined bark and growl and brighter. Hard to describe but night and day difference. Before I changed these out there were very few settings on my distortion channel that I liked. Now I can clearly hear the differences when I change tone, gain, power, etc. This is a great upgrade! Worth every penny. I'm plugging in with a Gibson Les Paul Studio and ESP LTD with EMG pickups.

          Comment on this review

          (1 of 1 customers found this review helpful)

           
          5.0

          MULLARD TUBES ARE A GREAT TUBE

          By HOWARD ALLEN

          from WILDWOOD,FL.

          About Me Experienced

          Verified Buyer

          Pros

          • Good Quality

          Cons

            Best Uses

            • Concerts

            Comments about Mullard 12AX7 Preamp Tube:

            I USE THEM ALL THE TIME GREAT JOB

            Comment on this review

            (3 of 3 customers found this review helpful)

             
            5.0

            Great Upgrade to My Amp

            Comments about Mullard 12AX7 Preamp Tube:

            I bought these tubes to cleanup my stock Bugera V22 guitar amps sound and did they ever! If you're looking to get those bell like tones when you pluck those strings these will really help! The clarity is just spectacular, IMO.

            Comment on this review

            (5 of 5 customers found this review helpful)

             
            5.0

            Great tube

            By Guy-nv9XO

            from Me.

            Comments about Mullard 12AX7 Preamp Tube:

            Ive been running Old, original Phillips type 12AX7's in my DSL50 for years. i have a nice stash and ive always looked down on the new 12AX7 tubes as junk. Out of curiosity i bought 3 of these Mullards and Im VERY happy with the sound im getting. In my experience the problem with new manufactured preamp tubes is that, even if they have a decent tone, they are limited in range and detail. NOT SO WITH THESE MULARD RI. im getting a very full range with the pronounced, biting midrange i love in the originals. the note definition is almost as good as the dutch amperex. Im going to buy some more of these, plus some Tungsols and some JJ ECC803's and give the new tubes a closer listen.

            Comment on this review

            (4 of 4 customers found this review helpful)

             
            5.0

            sweet sounding tube for bass

            By raxx man

            from oklahoma

            Comments about Mullard 12AX7 Preamp Tube:

            curently running a vintage tb raxx(peavey)with 2 12ax7. it had sovtech wa's in it, decent sounding at best. tryed these and the tone noticeably inproved. very clean, musical sound. then i turn up the gain and the overdrive was impresive. i dont use distorsion much but the clean is very sweet. i would rate these as a mediem gain for you guitar guys, was considering tung sol but for bass i didnt think i needed high gain, glad i went with these!

            Comment on this review

            (5 of 5 customers found this review helpful)

             
            5.0

            Good Tube

            Comments about Mullard 12AX7 Preamp Tube:

            I have to agree with the guy who said its a waste of time and also misleading to compare these to the Phillips made Mullards of the 50's and 60's; NOTHING ever made is as good as those tubes were. That said, this Mullard from New Sensor is a pretty good tube. Somewhat mild in the gain department,(but not too mild) very clear overall presence. I do hear just a bit of the sound of an original phillips Amperex in these when they are over driven - good detail with a bit of the crunchiness and bite of those awesome 12ax7's. To clear up the "rebranding" confusion, these ARE NOT "rebranded" tubes. These tubes are NOT sold under any other brand name.They are made by New Sensor (an American Company) in Russia. New Sensor Owns the Mullard, Tung - Sol, Electroharmonix, Svetlana and Sovtek brands, just as Royal Phillips once owned Amperex, Mullard, Valvo and several other brand names. In my opinion and based on my trial and error experience, This is one of the better sounding 12AX7 tubes currently being made. I think it's probably best suited to Hi-Fi systems but i like them and use in them in My guitar amps. To me, they sound best in Fender and VOX amps, where a very clear clean tone with a bright high end is wanted. They sound good in Amps driving EL84 power tubes.

            Comment on this review

            (4 of 8 customers found this review helpful)

             
            1.0

            Mullards a bust

            By Davo

            from So cal

            Comments about Mullard 12AX7 Preamp Tube:

            So I got this as a replacement for the OEM 12ax7 in my 5 watt class A amp-the amp has only one preamp tube so its tone has a signifigant effect on the overall sound. This Mullard tube is a long plate design which many feel has a warmer tone while being potentially subject to more hum and microphonics. After nearly a month with this tube I am not happy with its tone. It is fairly sterile and low gain-which is frankly my biggest problem with newer tubes. However in this regard it sounds no worse than most current production tubes. My biggest issue with this Mullard is its buzz. This tube appears to have NO shielding. You cant tell everything by looking at a tubes construction but the buzz is quite clear even at lower gain settings. I tried it in another amp and even a preamp and the buzz remains. The one good thing about this experience, however is that I have been "inspired" to purchase only vintage/NOS tubes. I found a bunch of pulled Sylvanias, RCA's, and GE's for a song and have been having a blast-its a huge improvment. In general they sound better, have NO noise, and signifigantly more gain-and longer life. I have found a few that sound wonderful in pretty much any amp I put them in-and even NOS tubes are not much more than the 20 bucks this tube went for.This is not your pops Mullard. Its simply a rebranded, over priced, poor sounding tube.

            Comment on this review

            (3 of 4 customers found this review helpful)

             
            5.0

            Better than most New

            Comments about Mullard 12AX7 Preamp Tube:

            This tube Has a nice clear soundstage and good Overdrive crunch but not its really super high gain like the JJ's or the Tung Sol. I rated this tube against all other NEW production, not against Blackburn England Yellow Labels, or West German Telefunkens, as some people obviously do. No these Russian made "Mullards" arent up to the Old standard, but Ive comapared it head to head against the Chinese 7025 "Mullard copy" , supposedly I63 type, and this Long plate from New Sensor is superior in every way. This Mullard RI captures a bit of the orginals Detail and smooth overdrive whereas the Chinese 7025 sounds exactly ( to my ears) like the 12AX7A. A lot of drive and not much else. I recommend this tube.

            Comment on this review

            (3 of 3 customers found this review helpful)

             
            5.0

            One of Best New Production

            By Solerso67

            from baltimore

            Comments about Mullard 12AX7 Preamp Tube:

            Ive used these tubes in various amps, in all preamp stages and im definately impressed. In The V1 position in my Marshalls they behave very much like an original Amperex. They have a somewhat "flat" sound, not much coloration,with a lot of detail and power just like the original. In the V2 position Overdrive distortion is definately smoother and easier to listen to than most new production, and a lot of old prodcution as well. Very pronounced highs, and high mids. Cuts right through with great detail but still lots of saturation. In an amps that are naturally bright these might be a bit too trebly; again just like the original Amperex. This has beome of of my three favorite New prodcution tubes. The other two are the Tung-Sol 12AX7 and the JJ ECC803.

            Comment on this review

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