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 AmpRx BrownBox features flexible voltage attenuation options that let you bring your power input down to an optimal level, resulting in significantly improved amplifier performance.
Today, we should be receiv...
The Brownie, a voltage controller power supply for modern amps and the first of its kind. The Brownie provides unparalleled control, flexibility, and protection specifically for modern tube amplifiers by allowing th...
The AmpRx BrownBox Backline 1200 is a Rackmount Selectable AC Voltage Optimizer for Tube Gear 120V/50-60Hz. The AmpRx BrownBox Backline 1200 was designed for powering up to three tube amplifiers simultaneously, the ...
The Backline 2400 powers up to eight devices and provides two independent levels of voltage adjustment for up to four outputs per channel, allowing flexibility for players who have both vintage and modern amplifiers...
The Backline 1200 Plus expands on the capabilities of the Backline 1200 by incorporating Brownie voltage adjustment technology, providing both voltage reduction and voltage increase functionality.
Designed f...
The Backline 2400 Plus builds upon the flexibility of the Backline 2400 by incorporating Brownie voltage adjustment technology, adding both voltage reduction and voltage increase capabilities to a dual-channel rack-...
The Backline 2400 Pro represents the most capable and flexible voltage management system in the AmpRx lineup.
By combining the proven voltage reduction capabilities of the Original BrownBox with the voltage ...
