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.
The MESA EL-34 STR 447 is our very best overall, premium grade NOS equivalent EL-34 and our tube of choice in the production of all new MESA EL-34 powered models. It offers traditional EL-34 tone & feel – urgent and...
The MESA STR 488 is the premium KT-88 of choice for our all-tube Prodigy and Strategy Bass Amps. Capable of delivering incredible power and fundamental bass punch, the STR 488 also offers the perfect blend of balanc...
The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII.
Examples of...
Expansion Modules Available
The Orange Valve Tester MKII’s new optional expansion modules will be particularly appealing to Hi-Fi enthusiasts. It allows the testing of directly heated valves such as the 300B and...
The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII.
Examples of...
The Expansion Module is an optional accessory to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII.
The Orange Valve Tester MKII’s new...
The Expansion Module is an optional accessory (purchased separately) to provide testing and evaluation for a valve not included in the many valves already covered by the Orange Valve Tester MKII.
Examples of...
Svetlana Tubes are made in Russia and are renown for their tone and character. Svetlana offers a wide selection of tubes for both hi-end audio and guitar amplification....
Svetlana Tubes are made in Russia and are renown for their tone and character. Svetlana offers a wide selection of tubes for both hi-end audio and guitar amplification....
The best current production 6SL7 available. NOS performance and sound at a fraction of the price. Sweeten up the preamp section of that Vintage Ampeg B-15.
The Tung-Sol 6SL7 name and trademark have been acquir...
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.
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