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Walrus Audio DFX-1 Percussion Processing Unit , $764.99 - Add to Cart Skip to Product Information

Walrus Audio DFX-1 Percussion Processing Unit

Multi-FX Unit for Drums with Mic Preamp, Compression, Saturation, Reverb, Delay, EQ, Phantom Power, MIDI, Display Screen, and USB-C
Be the first to review Item ID: DFX-1
Walrus Audio DFX-1 Percussion Processing Unit
Walrus Audio DFX-1 Percussion Processing Unit
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Walrus Audio DFX-1 Percussion Processing Unit
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Instant Savings: $135.00

Expand Your Kit’s Potential with Pedal-inspired Effects

This article was Written By

Our Product Research Team

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Who says stompboxes are just for guitarists? The Walrus Audio DFX-1 Percussion Processing Unit was designed in collaboration with stage and studio veteran Aaron Sterling — John Mayer’s go-to drummer for more than a decade — as an all-encompassing pedalboard for drummers. Complete with a dedicated mic preamp with +48-volt phantom power, a -20dB pad, and an XLR combo jack, the DFX-1 allows you to drench your room/snare/overhead mic’s signal with effects tuned specifically to excel on drums. From ’80s-style gated reverb to punchy compression and dub-inspired echoes, each of the DFX-1’s three effect sections sports two distinct voices, with the utility-packed fourth section introducing a tilt EQ and tube-inspired saturation. What’s more, the DFX-1's trio of pads allows you to activate and modify effects with the press of a finger or the strike of a stick. You also get a robust I/O section to take on any setup, including MIDI In/Thru, USB-C, and an effects loop with customizable placement within the signal to integrate additional pedals. Whether you’re craving greater control over your sound before it hits FOH or you’re an adventurous percussionist with an experimental streak, the Walrus Audio DFX-1 dramatically expands the creative capabilities of your kit.

Three flexible effect sections and versatile utility functions

Walrus Audio worked extensively with Aaron Sterling to devise a collection of effects that would cover all the standard needs of a stage and studio drummer, with each of the three main effect sections featuring two unique voices to build your sound upon.

  • Compression: The DFX-1’s compression section starts with a VCA-style circuit that’s perfect for adding a touch of glue or punch to a signal. Prefer a grittier tone? Sweetwater’s studio pros recommend switching over to the FET side for a spot-on emulation of the mighty 1176.
  • Delay: Whether you’re after clean, crisp digital repeats or character-packed analog echo, the DFX-1’s versatile delay section is happy to oblige.
  • Reverb: Perfect for imparting a touch of space to a room mic or a dramatic splash to your snare, the DFX-1’s reverb section supplies you with both lively Spring sounds and the smoother character of a Plate reverb.
  • Saturation/EQ: Finally, the DFX-1’s fourth section is composed of two distinct effects, including a rich saturation based on asymmetrical tube clipping and a multipurpose EQ knob that can be configured as a highpass filter, a lowpass filter, or a midrange cut. Moreover, this section also allows you to choose whether you wish to run the DFX-1’s effects in Forward (Saturation > Compression > Delay > Reverb) or Reverse (Saturation > Reverb > Delay > Compression).

Ample I/O to take on any rig

Whether you’re running a dynamic mic on your snare, a condenser for your mono overhead, or a ribbon to pick up room sound, the DFX-1 has you covered. This pedal’s onboard preamp includes all the standard-issue functions you’d find on a piece of studio kit, including an XLR combo jack with +48-volt phantom power, a -20dB pad to tame hot signals, and a Line/Instrument level switch. Next, the DFX-1’s onboard effects loop offers three different placement options within the pedal’s internal signal chain, allowing you to effortlessly optimize the sound of your outboard stompboxes. Finally, you also get a USB-C jack and 5-pin MIDI In/Thru jacks, allowing you to take in-depth remote control over the DFX-1’s myriad parameters and functions.

Walrus Audio: built by tone tweakers for tone tweakers

The artists, musicians, and engineers at Walrus Audio take pleasure in chasing sounds that inspire, like the perfect breakup of an overdrive, a beautifully thick distortion, an endlessly sustaining reverb, and a self-oscillating delay. Simply put, these guys love to play with sound. They design stompboxes that re-create the sonic textures that they hear in their heads. Built by tone tweakers for tone tweakers, Walrus Audio’s guitar pedals are as versatile as they are functional. Complete with eye-grabbing graphics, Walrus Audio’s pedals are the perfect tools for guitarists who want to sculpt their own unique sounds.

Walrus Audio DFX-1 Features:

  • Dedicated percussion processing unit that allows drummers to incorporate guitar-pedal-style FX into their rig
  • Designed in conjunction with star stage and studio drummer Aaron Sterling, whose resume includes the likes of John Mayer, Taylor Swift, Harry Styles, Post Malone, and countless others
  • Screen display and pedal-style controls allow for intuitive navigation and tone tweaking
  • A, B, and C pads allow you to activate and modify effects with the tap of a finger or drumstick; pads can also be used for the delay's tap tempo function
  • Onboard mic preamp sports an XLR combo in, a 3-pin XLR out, +48V phantom power, and a -20dB pad
  • Puts 3 distinct FX sections at your command, with the Compression, Delay, and Reverb FX all boasting 2 distinct voices to explore
  • Fourth section combines both a tube-style asymmetrical clipping circuit and a versatile EQ control (LPF, HPF, and midrange cut)
  • 128 presets available via the display menu and through MIDI control
  • Fourth section also gives you 2 different signal chain orders to choose between
  • Built-in FX loop to integrate the rest of your pedal collection
  • FX loop can be placed at several different positions within the signal chain to best suit your sound
  • 5-pin MIDI In/Thru jacks to take in-depth remote control over sounds and parameters
  • Convenient light-up monitoring makes it a breeze to set your mic signal to the proper level

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
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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.