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Preferred Series 7025 / 12AX7
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The Preferred Series 7025 is a high quality 12AX7 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 12AX7. 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 Types
Additional Information and Downloads
12AX7 Tube Review
Tube Matching Information:
Matched Sections Service
Preferred Series 7025 Datasheet (PDF)
Download Adobe Acrobat PDF reader
Warranty Information and Return Policy Warranty Period: 6 months
All our tubes are guaranteed for 3 months from the 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 90 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 3 month, or are returned improperly.
These guidelines may be updated without notice.
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By Charles Smith
from Boston MA
Preferred Series 7025, my go-to 12AX7
from Melbourne Beach, FL
By Cemhan Baykal
from Istanbul, TURKEY
By TIM M
from San Diego, CA
BLUES JR AND HOT ROD DELUXE
A transparent and clinical tube
from Burlington, ON
Best 12AX7 I've tried yet
By Tone Savage
By Troy Guinn
from Damascus, Md.
from Riverside, CA USA
from QC, Canada
Wow, big upgrade from the JJ's
from Henderson, NV
By Anderson Johnson
from Atlantic City / Galloway NJ
The 7025 Preferred Series
By Perfect Vision & Sound
from Avon, CT
Replacement in Ibanez TK999HT
By John Czapla
from Richboro, PA
Great Tube in Aesthetix Audio Preamp
from Southern California
from Laredo, tx
Warmer, brighter... stronger
from Charleston, SC
Marshall Haze Premium Pkg
By Mark F
from Omaha, Nebraska
Thoughts on the Preferred Series 7025