Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
MESA SPAX7 preamp tubes are a premium grade 12AX7 that possess an even higher standard of overall performance due to their incredibly low sensitivity to microphonic noise. This is the ultimate preamp tube to use in ...
12AX7 preamp tubes play a remarkable, dynamic role in the creation of the final tone in your vacuum tube amplifier. 12AX7s are components, early in the circuit, that determine how clean or, how lush, layered and mas...
The Orange Valve Tester MKII, proudly crafted and engineered in the UK, revolutionises valve-testing technology. With seamless precision and simplicity, it effortlessly conducts a comprehensive array of tests, setti...
High gain, ULTRA low noise/microphonics.
Forget about Telefunken. The 12AX7EH provides high gain with ultra low noise and detailed, musical tone that rivals the most desirable NOS types. Unique spiral filament e...
The 6L6 STR-443 power tubes provide a great classic, vintage 6L6 voice. These nicely balanced tubes offer a deep low end, controlled and tailored low-mids with a pleasing sparkle and chime on the top-end.
St...
The MESA EL-84 / 6BQ5 is the little brother to the EL-34 and is the classic European-designed tube that lead the original British invasion. Our EL-84 offers tight and punchy bass, smooth and warm midrange, and an am...
The 12AX7 Tungsol has high gain, ultralow microphonics and superb linearity. The sound of this tube is full and musical. <br />
<br />
The Tung-Sol name and trademark have been acquired by the New Sens...
The STR-445 is a 6L6 that shares some qualities of a 6CA7 in that it has tight, articulate low-end for excellent bass definition along with beautifully balanced mid and a chiming top-end that cuts without harshness....
The MESA 5U4GB Rectifier Tube is our very best overall 5U4 and our rectifier tube of choice in the production of all new MESA amps featuring this tube. This tube produces a "traditional vintage sag" with the most el...
The MESA STR 450 EL-34 is a German made, "A" grade NOS (New Old Stock) Siemens EL-34. This legendary European EL-34 is known for its unsurpassed "bell-tone" clarity and touch sensitive sustain & articulation. Premie...
The MESA 6L6 STR-448 is a premium grade 6L6 with a balanced voice and plenty of punch and headroom. They produce rich low end, tight, full midrange and pleasing top end that is present where it counts, yet also warm...
The STR 441 is an exceptional vintage-voiced 6L6 with superb low end, neatly tucked mids and an exceptionally smooth, tapered top-end for a warmer, richer and sweeter tone. They help provide the Treble and Presence ...
Don't let worn, failing, or compromised vacuum tubes (valves) rob your amplifier of its precious tone! Available individually or in matched sets, AMS provides a full range of preamp and power amp tubes to deliver the ultimate in amplifier performance.
This website uses cookies to enhance user experience and to analyze performance and traffic on our website. We also share information about your use of our site with our social media, advertising and analytics partners. View our Privacy Policy.
Privacy Preference Center
Privacy Preference Center
Your Privacy
Your Privacy
When you visit our website, we store cookies on your browser to collect information. The information collected might relate to you, your preferences or your device, and is mostly used to make the site work as you expect it to and to provide a more personalized web experience. However, you can choose not to allow certain types of cookies, which may impact your experience of the site and the services we are able to offer. Click on the different category headings to find out more and change our default settings according to your preference. You cannot opt-out of our First Party Strictly Necessary Cookies as they are deployed in order to ensure the proper functioning of our website (such as prompting the cookie banner and remembering your settings, to log into your account, to redirect you when you log out, etc.). For more information about the First and Third Party Cookies used please follow this link.
More information
Strictly Necessary Cookies
Strictly Necessary Cookies
Always Active
These cookies are necessary for our website to function and cannot be switched off in our systems. They are usually only set in response to your requests for services, such as setting your privacy preferences, logging into your account, or filling in forms. You can manually set your browser to block or alert you about these cookies, but it will prevent parts of our site from working as expected. These cookies do not store any personally identifiable information.
Performance Cookies
Performance Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us identify which pages are the most and least popular and see how visitors move around our site. All the information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies, we will not know when you have visited our site and will not be able to monitor its performance.
Functional Cookies
Functional Cookies
These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, then some or all of these services may not function properly.
Sale of Personal Data
Sale of Personal Data
Under the California Consumer Privacy Act, you have the right to opt-out of the sale of your personal information to third parties. These cookies collect information for analytics and to personalize your experience with targeted ads. You may exercise your right to opt out of the sale of personal information by using this toggle switch. If you opt out we will not be able to offer you personalised ads and will not hand over your personal information to any third parties. Additionally, you may contact our legal department for further clarification about your rights as a California consumer by using this Exercise My Rights link.
If you have enabled privacy controls on your browser (such as a plugin), we have to take that as a valid request to opt-out. Therefore we would not be able to track your activity through the web. This may affect our ability to personalize ads according to your preferences.
Targeting Cookies
Targeting cookies collect information for analytics and to personalize your experience with targeted ads. These cookies may be used to build a profile of your interests to show you relevant ads on other sites. They do not store specific personal information but are based on uniquely identifying your browser and internet device.
You may exercise your right to opt out of the sale of personal information by using the toggle switch in this menu. If you opt out of targeting cookies, we will not offer you personalized ads or share your personal information with any third parties. If you have enabled privacy controls on your browser (e.g., Global Privacy Control), we will automatically opt you out of targeted advertising and the ads you see will not be personalized.
