The 9 Best 812 A Vacuum Tubes (2023 reviews)

The Tungsol tubes are good replacements for any 12AX7 tubes. It is a high gain preamp tube that works well in V1 posistion. It cleans and crunchs due to increased clarity. The tube is absolutely whisper quiet. It is great for taming midrange-heavy amps.

It adds warmth and a little bit of color to the overall sounds. The tube is quiet and provides the bass bloom warmth that tubes are known for.

Why We Like This:

Very clearly brightness sound and sustain
Bright, great for clean, crisp and crunchy overdrive but not sweet
New and hot release

Best For voice: Kailas accessories 812 A Vacuum Tube

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Best part: kailas accessories 812 a vacuum tube costs comparatively low and it is available to ship in 24 hours. These little babies sound incredible. It is great to darken up a bright amp. It has a well balanced, colorful tone with strongly defined lows, mids and smooth highs. It is also highly recommended for studio pre-amps and hi-fi gear.

These tubes increase clean headroom nicely. They sound awesome and are probably the best tubes for Marshall's at this time.

Why We Like This:

Warm clean tones, nice gritty breakup
Excellent tubes with great sound and clarity
Not harsh, jagged distortion, but creamy, bluesy drive
Fast packed well and sound great

Best For jazz: tubedepot 812 A Vacuum Tube

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The tubedepot 812 a vacuum tube is satisfactory and appropriate and fits well with your daily purpose. This set contains 2 JJ EL84 / 6bq5 power vacuum tubes. It takes EL84 tubes and these are 2 very different tubes. With heavy palm-muted chording or single-note soloing they sound great either way for hard rock and metal. It’s numptuously syrup smooth with the sheer power to fry bacon. The amp sounds 100% better.

Under gain (heavy gain), these JJ EL84's sound very nice with a classic British crunch and exhibiting a slight push to the upper mids in frequency. It is great for jazz or country or any other genre needing crisp, chimey cleans. These Tubes/Valves sound great.

Why We Like This:

Less struggle with double stops and alternate picking
Lot of satisfied buyers

Best For warm Sound: Douk Audio 812 A Vacuum Tube

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Douk Audio makes beautiful and great tube with classic and smartly choosen materials. They sound amazing with the Little Bear pre amp. It is a military upgrade and will provide superior sound to your pre-amp. Compared to the stock, which sounds dark and more bass heavy, the GE Jan sounds clearer with less degradation in the treble area while retaining the warmth. Those subtle harmonics being reproduced with such detail and clarity really does evoke a profound sense of drama that somehow affects your whole body and consciousness, in the way it resonates as something you "feel" as much as hear.

These tubes add balance and better imaging over the originals. They definitely have their own sound signature, and they are inexpensive enough to purchase for a change of sound.

Why We Like This:

Excellent sound is warmer on the top end
Amazing sound and short burn-in time
One of the new comers and featured product

Best For metal: Genalex Gold Lion 812 A Vacuum Tube

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If you want/need hot, these tubes are awesome. They sound better than the stock tubes but the bass is boomy, the highs are slightly lacking but the mids and vocals are more detailed. The sound of the Gold Lions is already a significant improvement even with only a couple of hours of break in on them. It reduces oxidation in the socket to add to that features balanced sections and gold plated pins.

The product is quality, and the sound of the tubes is great. It will raise the height of the tubes so you can remove the tubes easily.

Why We Like This:

Holds up against great nos tubes
Silky smooth, warm and sweet reproduction tubes
Clear highs, without any roll offs or sibilance
Wonderful for upgrading tubes in a phono pre-amp

Best For military applications: Sovtek 812 A Vacuum Tube

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The features department is where sovtek 812 a vacuum tube truly manages to shine. This is a great replacement rectifier for boyuurange a-50 tube amp.

Why We Like This:

Russian made and was made for military applications
Very well made and is very rugged
Amp powers up faster and can withstand aggressive playing
Bass response increased and the sovtek 5ar4 sounds great

Best For minute sources: Genalex 812 A Vacuum Tube

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This tube really brings out the best of the schiit vali. The gold lion really opens up the soundstage and presentation and adds a nice warmth to the music that the EH and stock tube didn't get close to offering. The sound becomes smoother, deeper, and easier on the ears overall compared to the 6BZ7 tube. The high are airy and very clean without any sibilance at all.

This tube is certainly capable of changing the sound of your output. It is good for jazz, too bright for pretty much any other genre. The background floor is extremely quiet. The tube is very fun to listen to.

Why We Like This:

Imaging and resolution is clean as well
Full lows and warm mids with a nice shine on the top end
Sound is dramatically improved with wonderful sonics and sound staging

Best Quality little Tube: Komitasui 812 A Vacuum Tube

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The 7-pin Ge jan 5654W vacuum tubes are a great choice for audiophiles who are looking for an upgrade in sound quality. They can be used in a variety of audio applications, including amplifiers, preamplifiers, and guitar amplifiers. The tubes sound OK and have better Soundstage than the China tube that comes with the preamp. They also have a long life expectancy, so you can enjoy their great sound for many years to come.

The 5654W tubes are direct replacements for 7-pin 6J1, 6J1P, 6AK5, EF95, and 403B tubes. They have a lower noise floor, which results in a cleaner and more detailed sound. The 5654W tubes are very durable.

Why We Like This: