Mullard 12AX7 Pre-Amp Tube

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$28.55 to $28.82

1 Critic Review

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Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated July 4, 2026.

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3.5 (14)

$28.82

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4.5 (17)

$28.82

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4.6 (198)

$28.55

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Price History

Based on price data from 2 merchants for "Mullard 12AX7 Pre-Amp Tube". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Elevate your sound with the Mullard 12AX7 Pre-Amp Tube, a must-have for guitarists seeking clarity and depth in their tone. Known for its large sound stage, this tube brings your music to life with precision and detail, making it a popular choice among audiophiles and professional musicians alike. Crafted to offer a distinctive sonic character, the Mullard 12AX7 is factory selected for low noise and minimal microphonics, ensuring that every note rings true without unwanted interference. Whether you're enhancing your practice setup or fine-tuning your live rig, this pre-amp tube enriches your sound with warmth and vibrancy.

Designed for those who take their music seriously, the Mullard 12AX7 seamlessly integrates into any amplifier setup, providing reliable performance that musicians can count on. Its robust construction ensures durability, while its balanced output maintains the integrity of your music, whether you're on stage or in the studio. Experience the difference in sound quality and let the Mullard 12AX7 Pre-Amp Tube be the cornerstone of your sonic journey.

Key Features:

Large sound stage with excellent detail
Factory selected for low noise and minimal microphonics
Provides a distinctive sonic character
Robust construction for long-lasting performance
Ideal for both live performances and studio recordings

Product specs

Type	Preamp
Model	12AX7 Mullard
Quantity	Single

FAQs

What tonal characteristics can I expect from the Mullard 12AX7 Pre-Amp Tube?: The Mullard 12AX7 Pre-Amp Tube is known for its warm, rich, and detailed sound, making it a favorite among guitarists seeking vintage tones. It provides smooth overdrive and excellent clarity, which is ideal for classic rock, blues, and jazz.
Is the Mullard 12AX7 Pre-Amp Tube suitable for high-gain amplifiers?: Yes, the Mullard 12AX7 is well-suited for high-gain amplifiers, offering low noise and high gain, which enhances the amp's performance in delivering powerful and articulate sound.
How does the Mullard 12AX7 compare to other 12AX7 tubes?: The Mullard 12AX7 is often praised for its superior build quality and tonal warmth compared to other 12AX7 tubes, making it a popular choice for those seeking a vintage sound profile.
Can I use the Mullard 12AX7 Pre-Amp Tube in any guitar amplifier?: The Mullard 12AX7 is compatible with most guitar amplifiers that require 12AX7 tubes. However, it's always best to check your amplifier's specifications to ensure compatibility.
Where is the Mullard 12AX7 Pre-Amp Tube manufactured?: The Mullard 12AX7 Pre-Amp Tube is manufactured in the Reflektor factory in Saratov, Russia, known for producing high-quality vacuum tubes.

Videos

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Upscale Audio High Fidelity

Upscale Audio's Kevin Deal reviews the Mullard 12AX7/ECC83 New Production Re-issue

Upscale Audio High Fidelity

A brand new Mullard 12AX7 vs a 1950s Mullard ECC83. Comparing preamp tubes (12AX7/ECC83) PART 2

GUITARS & GIZMOS

Mullard 12AX7 & 12AX7 Telefunken Test

English Grammar So Easy

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Mullard 12AX7 Pre-Amp Tube.

Comparisons

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The Genalex Gold Lion CV4004 tubes offer lively sound but require higher amplification compared to Mullard reissues, needing a volume increase of approximately 7 steps for similar loudness.
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Psvane ART series tubes are rated higher than both Genalex Gold Lions and Mullard reissues based on user experiences with 12AU7 tubes.
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Mullard 12AX7 tubes are noted for bringing out "Britishness" in amps, especially highlighting high-mid aggression compared to JJs, which can sound dull in British-voiced amps.
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Russian-made Mullard tubes are described as smoother and more balanced compared to the brighter-sounding JJ tubes, with a preference for Russian valves in Marshall amplifiers.
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Brimar 12AX7 tubes from the 60s offer a subtle sound signature, which can contrast with the strong signature of Gold Lion power tubes.
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Mods and upgrades

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Mesa’s SPAX7 tubes are recommended as an alternative, with the note that they differ significantly from the reissue Mullards made in Russia.
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Switching from current Mullard to Electro Harmonix tubes can lead to a more sophisticated sound without the high cost of NOS tubes.
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User experience

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Initial owner feedback on Genalex Gold Lion tubes highlights an immediate improvement in sound, with descriptions of music feeling "life in the living room."
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One user found Mullard tubes instantly improved the sound quality in British-voiced amps, enhancing the signature tone where other brands failed.
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Electro Harmonix 12AX7 tubes are praised for being versatile, clean, and detailed, making them a solid choice for users avoiding high-priced NOS tubes.
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RCA 12AX7 and 12AU7 tubes are favored for their tone, body, and dynamics, offering a more engaging experience compared to current Mullard tubes.
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Features and functionality

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Reissue Mullard 12AX7 tubes are perceived to enhance vocals and bass better than default Project tubes despite initial dissatisfaction with overall warmth.
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Use cases and applications

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Mullard tubes are favored in Vox and Fender amps for their smooth tone, with a tendency to feedback in high-gain circuits due to larger plate design.
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The JAN GE 12AX7 tubes from the early 80s can be a cost-effective alternative, offering a slightly airier sound, though they may suffer from microphonics.
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Setup and maintenance

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Modern Mullard tubes, produced by Sovtek, may show variation even within the same brand, suggesting the quality can differ compared to NOS Mullard tubes.
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Value and pricing

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NOS Mullard tubes are significantly more expensive than current production Mullards, indicating a substantial price difference based on age and origin.
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Critic Reviews

Review - Mullard 12AX7 / ECC83 Reissue Tube - thetubestore Blog

thetubestore.com

While the Mullard 12AX7/ECC83 Reissue Tube boasts an excellent noise floor and smooth tone, it ultimately shines more in home audio than in guitar amps. Critics note the tube's balanced triode pairs and lack of microphonics, but its somewhat flat sound compared to competitors like the Tung-Sol 12AX7 may leave guitarists wanting more color and dynamics. It's an appealing option for audiophiles, yet those seeking vibrant tones for their guitar setups might find better alternatives at a lower price. Overall, it's a solid choice, but not the standout for musicians.

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