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Walrus Audio ARP-87 Multi-Function Delay Pedal

The ARP-87 is a veritable swiss army knife of delay pedals, and it's our top choice for gigging musicians or folks who need a lot tone in a small package. In an enclosure no larger than a simple overdrive pedal you have access to all the quintessential marks of a good echo box with extended controls and modern functionality. The four delay options start with the must have digital or analog options and throw in two that you might not have expected but will be thankful for. The Lo-Fi setting uses a unique filter (controlled with the X knob) that can bring you back in time to wobbly tape machines and crackling vinyl, which is actually something you hear a lot in modern music (see your study/chill playlist). The Slapback mode is a most simple idea but incredibly effective, especially for anyone in a band. A driving slapback can make or break your country licks and if you've been on stage trying to turn a Time knob to the right place before the drummer starts, you'll appreciate this feature to the fullest. Another bonus that Walrus has made standard is the momentary switching, where you can simply hold the bypass button to trigger the effect as long as you want and it will go off when released. This on-the-fly function is indispensable when improvising or playing live because you can make the effect part of your active voice rather than of a static tool. Within the 4 modes of delay you can nail classic tones from your record collection, or create a sound all your own. This pedal is a great example of what Walrus seems to do best: Creating pedals that give you the tools take your instrument back or forward in time (no pun intended) with an over arching respect for user-friendly platforms.

In the words of Walrus Audio

The ARP-87 is a compact, feature-rich delay, packed with a large pallet of inspirational delay tones. Featuring four main algorithms, digital, analog, lo-fi, and slap back, the ARP-87 can cover some serious ground in the world of echoes.

The Digital algorithm boasts pristine, crystal clear repeats great for rhythmic riffs. The Analog setting works well to add warmth and dimension to chords and lines without getting in the way. The Lo-Fi algorithm, with its adjustable frequency range on the repeats, goes from warm, warped, and murky, to strait AM radio. Finally, the Slap setting makes it easy to dial in a great slap back echo perfect for smoking chicken pickin’ runs. With other features like our smart bypass switching, and momentary knob ramp, the ARP-87 provides endless creative opportunities that are waiting to be explored.  

The X knob changes functions depending on which Algorithm you are using. It adjusts a specific parameter in each algorithm. In Digital, Analog, and Slap modes, the knob will control modulation depth. In Lo-fi mode, the knob will control Filter width. 

Note that when changing delay types this loads a whole new algorithm and the tempo must be tapped in again. Max delay time is 1000ms.

Trails Mode

The ARP-87 can be run in trails or no trails mode. In trails mode, when you turn the pedal off, the delay trails die off naturally. In no trails mode, the delay trails are abruptly cut off when you turn the pedal off. To toggle between either mode, hold down the bypass switch for 1 second while applying power to the pedal. Unplug power and repeat to toggle to the other mode.

Momentary Functions

When the switch is in off position, press and hold the Bypass Switch to temporarily activate the effect to add a moment of delay texture. Releasing the switch turns the effect off. When the effect is on, press and hold the bypass switch to momentarily ramp the X parameter to maximum. Releasing the switch sets the X parameter back to the knob location. 

Press and hold the Tap Switch to temporarily ramp the feedback to maximum. Release to set the feedback back to the knob location.

Specs

  • The ARP-87 comes in a Frosted Charcoal finish with cream and seafoam ink featuring original artwork by Chris Castro of a lone ship traveling through the ARP-87 Galaxies.
  • The diecast enclosure’s exact size is 4.77" x 2.6" x 1.39".
  • Power requirements are 9VDC (100mA minimum).
  • The use of an isolated power supply is recommended for powering all Walrus Audio Pedals.
  • Daisy chain power supplies are not recommended. Power supply not included.