Preferred Series 12AX7 Preamp Vacuum Tube
The Preferred Series 12AX7 vacuum tube is the most recent addition to our premium line of high quality tubes. The Preferred Series is made up of the best current production tubes, sourced to our specifications. The PS-12AX7 preamp tubes carry a 6 month extended warranty.
From our review: "This 12AX7 is a versatile, quiet tube that will be at home in just about anyone's guitar or HIFI amplifier. In a Fender Champ they displayed no microphonics or rattling, and had a warm, smooth character that can still get rowdy when driven. The detail is all there as well..."
This 12AX7 audio tube has crimped, mid-sized plates, thick mica spacers, and a disc-style getter ring.
Other Preferred Series tubes
12AX7 TypesAdditional Information and Downloads
Reviews:
12AX7 Tube Review
Tube Matching Information:
Matched Sections Service
Warranty Information and Return Policy
Warranty Period: 6 monthsPreferred Series tubes have a 6 month warranty from date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 180 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 6 months, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
13 reviews
Preferred Series 12AX7 | WOW what a difference
by Paul -
I bought a used JVM 210 head and it had what was probably an old set of EXH preamp tubes. They just sounded dull and blah. When I turned the gain up it sounded even worse.
I put a set of the Preferred Series 12AX7's in it, and WOW what a difference. The midrange really opened up the harmonics are gorgeous and when you turn the gain up, it just sounds even better. What a beast even on the red channel.
Don’t believe what they say in the Internet about tubes not making a difference. In this case it made a huge difference. You can’t compare mediocre tubes to mediocre tubes. You gotta go for the good stuff if you want the tone.
Preferred Series 12AX7 | Replace the 12BZ7 in Sixpacs..
by Denny L -
I couldn't resist writing a second review for the Preferred Series 12AX7. This time it replaces the 12BZ7 gain tubes in my Cary - Audio Electronics Sixpacs that Dennis Had waxed so poetic about years ago. With the PS-12AX7's there is no apparent lack of gain, but there is far more detail, resolution and dimensionality. It also reveals a very musical, dynamic and smooth presentation. This is a great tube in hifi amps. I'm buying more.
Preferred Series 12AX7 | VERY PLEASED
by Rick -
I ordered these 12AX7 for a Zero Zone tube pre that I recently purchased. The stock tubes sounded good, but I wanted to try something else. These seem to have a little more detail and a little tighter bass. Overall, I'm very pleased with both the tubes and the service from thetubestore.
Preferred Series 12AX7 | Great in tube DAC
by Denny L -
Wow - I ordered these Preferred Series 12AX7 online on a Monday morning, and they arrived that Wednesday afternoon. Great service TubeStore!
There were already a few pairs of the previous preferred series 7025 tubes in my stash. Those sound smooth, detailed, very musical and are still going strong after many years of service. However, I recently acquired a Jolida FX Tube DAC II for a song and have been rolling in other 12AX7's from the stash, finally settling on the above mentioned 7025's.
These ps-12AX7's sound similar but with a bit more drive, as you'd expect. They are quieter and seem to be a touch livelier and engaging, while retaining the 7025's other musical attributes.
I'm very pleased with these ps tubes. There's not a trace of hardness or glassiness as with some new production tubes. Highly recommended! Now if the TubeStore can only come up with a ps 12au7...?
Preferred Series 12AX7 | Wow!
by Rod -
Just bought two of these PS-12AX7 to try in some noisy amps. In two Crate V50 amps (I have 4) I put these in tube 1 position. On the first amp after putting it in I thought it was dead because until I turned up my guitar I did not hear noise. Wow! I have been using JJ's and have been very happy. These Preferred Series 12AX7 sound better midrange, top end and sustain. In the second amp same results. I have 32 amps so I will need more to try.