With AMS 0% interest Payment Plans, you use your own credit or debit card, and we will never charge you any interest! We will split your order total equally across the plan that you have chosen.
Your credit card will be charged every 31 days, automatically. It’s that easy! Some plans require a credit check.
Our 4 state-of-the-art, strategically located warehouses are highly efficient and allow us to ship your gear in record time - and most orders will arrive at your door within 2 days for free. Shortly after you place your order, a Ship Confirmation email will arrive letting you know the order was picked, packed, and put on a truck. Full Details
12 Months EXTRA for Free!
Many of our competitors charge 10% or more for an additional 12 months of warranty on the products they sell. AMS offers this exclusive benefit to our valued customers at no extra charge. Thousands of items on our site and in our catalog carry the "Gold Lock Extended Warranty" icon. It means you get the manufacturer's full warranty plus 12 additional months, FREE!!!
Our 45 day return policy allows you to buy with confidence at AMS! If you are not completely satisfied with any item* purchased from AMS, return it to us within 45 days of the shipping date, and we will refund your money or help you with an exchange. That's always been our policy, and now we've added the ease of Electronic Return Labels!
Canadian Shipping Information
Welcome Canadian musicians! Buying your gear from AMS is as easy as going to a local music store, with more selection and more than competitive prices!
Items with this logo are eligible to ship to Canada. Please note that you will be responsible for payment of brokerage fees, duties and other import taxes applicable to your order.
NOTE: Free shipping offers do not apply to Canadian orders. Please be aware of custom fees - such as taxes and duties - when your order arrives. Since these fees vary from location to location, CUSTOMS FEES ARE NOT INCLUDED IN SHIPPING CHARGES. Please check with your local customs office for more information on the fees in your areas. Refusal to pay these fees will result in an undeliverable order. If returned, we do not refund shipping charges and may assess restocking fees to cover return shipping expenses.
Have questions, found a better price? Talk to a sales specialist!
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 elastic and compressed feel of the two 5U4's that we offer. Amazing feel and exceptional overall quality make this our factory favorite. Based on classic 1950s technology, the 5U4GB is a vastly improved 5U4 design that is extremely reliable and consistent, as well as more compact compared to original “Coke Bottle” 5U4Gs (3 3/4" from bottom of base to top of glass). It is similar in size to a 6L6 power tube so please take special care to install them in the correct tube position(s), especially when replacing 6L6's at the same time. 5U4GB Rectifier Tubes are used in MESA Amps like the Dual and Triple Rectifiers, Road King, Roadster, Stiletto Ace, Deuce & Trident.
MESA Rectifier Tubes are premium grade and offer unsurpassed consistency and reliability for ANY tube amplifier, and certainly MESA amplifiers!
Remember… our dedication is to create the world’s finest tube amplifiers. And to achieve that goal requires a deeper commitment to tube quality… because the reputation of our amplifiers depends on it.
Warranty: Limited Five (5) years for amplifiers and cabinets. Speakers
used within your MESA amplifier or cabinet are warranted for three (3) years, while all included light bulbs, vacuum tubes, batteries, cables,
and accessories are warranted for six (6) months; Limited One-Year Pedal, Signal Management Products and CabClone Warranty