Preferred Series 7025 / 12AX7 Preamp Vacuum Tube
The Preferred Series 7025 preamp tube is a high quality 12AX7 vacuum tube type. This tube is a reproduction of the highly regarded and sought after Mullards from the 1960s.
This 7025 is a high quality and very rugged custom 12AX7 tube. The plates are manufactured out of a premium metal imported from Germany and supported with extra thick mica spacers to insure against microphonics. They are burned in and tested at the factory and then again on our digital high voltage equipment to make sure the tubes selected for you will provide outstanding tone and performance.
From our review: "A great sounding 12AX7 tube type that reminds me a little more of the ECC83 that Ei made in the old days. That's a pretty nice compliment. I compared this tube against an old Ei and Telefunken smooth plate and there was very little difference. Lots of gain with a rather low noise floor. No microphonics issues at all. Very good considering the large plate size. Spot welding may be better for microphonics than crimped plates. I tried it in all the standard guitar amp duties and it was fine. Fabulous in Blackface Fender amps. We tried this 7025 in a 66 Vibrolux reverb 2x10 combo and the tones were all there. Light and shimmering or really aggressive, it's all good."
Warranty: The Preferred Series 7025 tubes carry a 6 month extended warranty.
Other Preferred Series tubes
12AX7 TypesAdditional Information and Downloads
Reviews:
12AX7 Tube Review
Tube Matching Information:
Matched Sections Service
Downloads:
Preferred Series 7025 Datasheet (PDF)
Download Adobe Acrobat PDF reader
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
86 reviews
Warm and Creamy
by Nick
I'm the owner operator of Nickafied Guitars Tech and Repair. I recently had on of my vintage 1975 Marshall JMP heads serviced. I was informed to try the Preferred Series 7025 Tubes. I am quite happy with the overall sound and performance from this amp with these tubes installed.
They are warm and creamy at low volumes, where they then breakup when pushed. The overall saturation they deliver is pleasing.
Preferred Series 7025 | Vintage tone for any Budget
by Sandro Alves -
I think I've tried just about every other new tube and I keep going back to these for all my Fender amps. These 7025 tubes just sound right for that classic vintage tone.
Preferred Series 7025 | MONOPRICE STAGE RIGHT 15 WATT Amp
by FMK Riverside
Used these 7025 in a Monoprice stage right 15 watt guitar amp combo, tamed the hum and noise with no loss to gain in the V1 slot .
bought a few for other prjects, one had issues and tubestore replaced with no hassle ! Aplus customer service !
Preferred Series 7025 | Cure for noise and hum!
by FMK Riverside -
These 7025 tubes cure noise, started out in my Genz Benz Streamliner head to cure the muddy sound, kept the overdrive where I love it! Just placed them in the V1 on a Monoprice Stage Right 15 watt combo guitar amp, no his, no noise ! these tubes cure the annoying hum noise and have become my go to tube for any of my preamp V1 slots! just ordered 4 more!
Preferred Series 7025 | "Mullard copy"--Made in China
by Mike -
I tried this PS-7025 tube in the V1 positions in both a Marshall 1959 SLP and a USA Fender Blues Deluxe and the results were impressive. There was an immediate and drastic difference between either a JJ ECC83s or an EH12AX7 in both amps, and this tube produces a "sponginess" that can be felt and is immediately discernible. Also, the sound could be described as "alive"-- the mids were warm and the highs were clear without any harshness or brittleness. Not sure how reliable these tubes are, but the tones are fantastic.