¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701
(800) 222-4700 Talk to an expert!
Press Space or Down Arrow to open the quick shopping cart menu. Press Escape to close the menu and return to the Shopping Cart link.
Loading Cart
Your Cart Is Empty

See what's new at Sweetwater.

My Cart this.cartQty

Tech 21 SansAmp RBI Bass Preamp , $375.21 - Add to Cart Skip to Product Information

Tech 21 SansAmp RBI Bass Preamp

Rackmount Bass Preamp with Effects Loop and 2 Direct Outputs
Tech 21 SansAmp RBI Bass Preamp
Tech 21 SansAmp RBI Bass Preamp

Backordered - More On The Way!

We expect more from Tech 21 in just a few days. Order today to reserve yours now, risk-free. Estimated September 8, 2026

Ask An Expert Our Expertly trained Sales Engineers are ready to help! What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Tech 21 SansAmp RBI Bass Preamp
Backordered - More On The Way!

We expect more from Tech 21 in just a few days. Order today to reserve yours now, risk-free. Estimated September 8, 2026

The Rackmount SansAmp

This article was Written By

Our Product Research Team

Get to know them!

Just like its exceptionally popular pedal predecessor, SansAmp RBI offers you an entire sound spectrum of the most coveted traditional and modern bass amp systems - including mondo overdriven tones that typically require a complex mass of gizmos that weren't even designed for bass in the first place. Sample settings, such as SVT- style, Bassman-style, King's X-style, and Crimson-style (to name a few) are included in the owner's manual to get you started.

Familiar controls

Drive adjusts the overall amount of gain and overdrive; Presence brings out the upper harmonic content and attack; Blend allows you to mix the direct instrument signal with SansAmp Tube Amplifier Emulation circuitry; and active Bass and Treble controls cut or boost +/-12dB.

What's new?

SansAmp RBI features a dedicated Mid control; individual Level control for the XLR out to optimize your amp's output relative to the P.A. system; Effects Loop; Mix 50/50 switch to configure the Effects Loop in series or parallel; 1/4" rear input and XLR output with select- able levels; buffered uneffected XLR output to run a dry signal to a separate channel; Footswitch input to engage unit; and Footswitch output to chain and toggle between another SansAmp RBI.

The SansAmp RBI gives you a truckload of bass amp rigs in a single rackspace. When you start with a solid foundation of tone, you can travel as heavy or light as you like

Tech 21 SansAmp RBI Bass Preamp Features:

  • Pumped-up, turbocharged SansAmp Bass Driver DI
  • Effects loop makes integrating your pedalboard easy
  • Mix 50/50 control enables parallel or series operation
  • XLR output with selectable levels
  • Buffered direct XLR output provides your with a dry signal
  • Convenient rackmount enclosure

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. 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.

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.