AmpRX | Sweetwater

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Showing 1 to 12 of 12 products

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AmpRX BrownBox Tube Amplifier Input Voltage Attenuator - Brown
5A Input AC Voltage Attenuator for Full-sized Tube Amplifiers with LCD Voltmeter, 4 Selectable Input Voltages, and 4 Selectable Output Voltages - Brown
^$399^.00
Rated 5 out of 5 stars based on 70 reviews
AmpRX Brownie Tube Amplifier Input Voltage Controller
AC Voltage Controller for Tube Amplifiers with LCD Voltmeter, +5V/-7V Output Voltage Range, and 2A/4A Fuse Options
^$299^.00
Rated 4.5 out of 5 stars based on 9 reviews
AmpRX BrownBox Tube Amplifier Input Voltage Attenuator - Black
5A Input AC Voltage Attenuator for Full-sized Tube Amplifiers with LCD Voltmeter, 4 Selectable Input Voltages, and 4 Selectable Output Voltages - Black
^$399^.00
Rated 5 out of 5 stars based on 3 reviews
AmpRX Backline 1200 Plus Voltage Controller - Brown
1,200W Voltage Controller for 4 Guitar Amplifiers with LCD Voltmeter - Brown
^$599^.00
AmpRX Backline 1200 Voltage Adjustor - 120V, Brown
1,200W Voltage Adjustor for 4 Guitar Amplifiers with LCD Voltmeter - 120V, Brown
^$599^.00
Rated 5 out of 5 stars based on 2 reviews
AmpRX BrownBox Tube Amplifier Input Voltage Attenuator B-stock
Refurb BrownBox Voltage Regulator
^$379^.00
Rated 5 out of 5 stars based on 2 reviews
AmpRX Backline 2400 Voltage Adjustor - 120V, Black
2 x 1,200W Voltage Adjustor for 8 Guitar Amplifiers with LCD Voltmeters - 120V, Black
^$1,199^.00
AmpRX BackLine 2400 Voltage Adjustor - 120V, Brown
2 x 1,200W Voltage Adjustor for 8 Guitar Amplifiers with LCD Voltmeters - 120V, Brown
^$1,199^.00
AmpRX Backline 2400 Pro Voltage Controller and Adjuster - Brown
2 x 1,200W Voltage Controller and Adjuster for 8 Guitar Amplifiers with LCD Voltmeter - Brown
^$1,399^.00
AmpRX Backline 1200 Voltage Adjuster - 220V-240V, Brown
1,200W Voltage Adjuster for 4 Guitar Amplifiers with LCD Voltmeter - 220V-240V, Brown
^$599^.00
AmpRX Backline 2400 Plus Voltage Controller
2 x 1,200W Voltage Controller for 8 Guitar Amplifiers with LCD Voltmeters
^$1,299^.00
AmpRX Backline 1200 Voltage Adjustor - 120V, Black
1,200W Voltage Adjustor for 4 Guitar Amplifiers with LCD Voltmeter, 4 Selectable Input Voltages, 4 Selectable Output Voltages, and Bypass - 120V, Black
^$599^.00

We know AmpRX products are among the very best available. That's why we here at Sweetwater are proud to carry a large selection of AmpRX items. You demand quality, reliability, and innovative design from your gear, and we're here to help you find exactly what you need, and our fast, free shipping on most items gets it to you when you need it. Our Sales Engineers know AmpRX products, and they're glad to answer any questions you have. You can depend on Sweetwater to give you the best possible value on great AmpRX gear.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.