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Royer dBooster In-Line Signal Booster , $199.00 - Add to Cart Skip to Product Information

Royer dBooster In-Line Signal Booster

In-line Signal Booster for Ribbon and Dynamic Microphones
Royer dBooster In-Line Signal Booster
Royer dBooster In-Line Signal Booster

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Royer dBooster In-Line Signal Booster
In Stock!

Only 9 left in stock! Order Soon!

Boost Your Ribbon and Dynamic Mics with up to 20dB of Pristine Gain

This article was Written By

Our Product Research Team

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Ribbon mics and dynamic mics are essential tools for any well-rounded studio. Still, they come with one major caveat: they’re power hungry and often require a significant amount of gain to capture low-level sources. The Royer dBooster represents a perfect in-line solution to your low-level woes, injecting ribbon mic and dynamic mic signals with a crystal-clear, switchable 12/20dB dose of gain. This phantom-powered signal booster boasts a massive amount of headroom, exceptionally noise-free operation with essentially zero self-distortion, and exemplary RF protection, elevating your signal and ensuring optimal sound when driving long cable runs. Moreover, the dBooster’s premium circuitry — which includes a true Class-A input stage — keeps your microphones’ sound as natural and uncolored as possible. Designed to excel in professional studios, live sound scenarios, or even bedroom podcast recording sessions, the Royer dBooster takes your ribbon mics and dynamic mics to an entirely new level of performance.

Juice up your most power-hungry mics

Ribbon mics and dynamic mics are standard issues across recording and live environments, from at-home podcast recording to the world’s most revered studio settings. However, they need far more power than your typical phantom-powered condenser microphone, often requiring more juice than most audio interfaces and preamps can dish out — especially if you’re recording low-level sources like acoustic guitars, speech, and hushed vocals. Fortunately, Royer’s dBooster transforms any audio interface or preamp into a ribbon-ready powerhouse, utilizing an active phantom-powered circuit that doubles (or even quadruples!) your mic’s output with a switchable 12/20dB boost of crystal-clear gain. Lastly, because the dBooster requires phantom power to function, it also protects phantom power from reaching and potentially damaging your treasured ribbon microphones.

A multipurpose in-line powerhouse

While Sweetwater’s recording pros champion the dBooster’s ability to juice up ribbon and dynamic mics, the truth is this mighty tool offers a multitude of uses in any sonic setting. The dBooster is perfect for driving even the longest of cable runs up onstage and accommodating difficult loads such as vintage-style preamps and mic splitters without batting an eye. Best of all, the dBooster’s utterly transparent operation all but eliminates unwanted coloration, noise, and increased distortion.

High-performance and load-agnostic operation

Engineered to deliver studio-grade sonic performance, the Royer dBooster’s premium design maintains headroom and gain regardless of load. The dBooster’s Class A input circuitry presents a high source impedance to the microphone, which minimizes damping (loading). This reduces coloration and distortion while simultaneously maximizing headroom. Furthermore, you can achieve an optimal balance between gain and headroom for a variety of uses by utilizing the 12/20dB gain switch.

Royer dBooster In-line Signal Booster Features:

  • In-line, phantom-powered signal booster, perfect for driving power-hungry ribbon and dynamic mics
  • Switchable 12/20dB gain boost allows you to record whisper-quiet sources with your audio interface or standard preamp
  • Ultra-low noise/distortion performance, with a massive amount of headroom, exemplary RF protection, and true electrical isolation
  • Premium circuitry ensures consistent and optimal gain/headroom, including a true Class-A input stage, an internal regulated power supply for true electrical isolation, and an actively balanced line driver with dual op-amps
  • Also serves to protect ribbon mics from phantom power
  • Minimizes mic loading
  • Capable of driving difficult loads, such as mic splitters and vintage-style preamps, without increased distortion or loss of gain

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.