Preferred Series 12AX7 Preamp Vacuum Tube

7 Reviews

Availability: Usually ships within 24 hours.

USD $‎25.95

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 tubes12AX7 Types

Additional Information and Downloads

12AX7 Tube Review

Tube Matching Information:
Matched Sections Service

Warranty Information and Return Policy

Warranty Period: 6 months

Preferred 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

7 reviews

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Preferred Series 12AX7 | Better than I Expected

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Ordered the matched set of these PS-12AX7 for my Fender Bassbreaker 007 that came with Groove Tubes vacuum tubes and I'm super impressed. The GT's are lifeless compared to the PS's! Nice tight bottom end with no flub solid mids and clear articulate highs. Ordered them on Thursday morning and received them at noon the next day here in the southern US. Highly recommend TheTubeStore if your in need of fast shipping and Quality Service.

A Quality Set Of Preamp Tubes.

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Just swapped 3 of these Preferred Series 12ax7 tubes in place of Tung-Sols. The Tung-Sol 12ax7 tubes were bright sounding and I detected some “spikiness” at times in my Orange Dark Terror. Both brands have superb lows, but the Preferred Series were smoother at handling the highs. I don't play Metal music which the Dark Terror can achieve, but for Classic Rock and Zeppelin type gain, these Preferred Series work ideally.

It’s a win with my Delta King 12

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Replaced the stock tubes in my Supro delta king 12.
Clarity and definition is much better and there is no more flubby when driving the preamp at full volume (Master is at a low setting)

An absolute must for V1


Using this tube in my V1 position really gave a new flavour to my amp.

Fantastic 12AX7

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I’ve tried many different 12ax7 tubes in my Marshall head and the only tubes better IMO are NOS.

On a different note, the customer service at The Tube Store is top notch with very reasonable prices on tubes as well as shipping to the states (plus much faster than I would have thought). The people there are very knowledgeable regarding different amps and what your particular sound is you are after.