Omar Rodríguez-López

Omar Rodríguez-López used the DigiTech WH-4 Whammy (4th Gen) on his pedalboard with The Mars Volta prior to 2011, as shown in a user-uploaded photo on Guitarplayer.

"And then the newest one would be the Slicer, which I picked up last year, right before we started doing the band, and I got that at, I think, Noisebug in Pomona in California, they always have a lot of great pedals, and [it] sort of goes further into like, the things that I was trying to do with the tremolo pedals, you know, but it has these cool harmonic things that happen in it that just don't happen, you know, with tremolos and, again, it's real versatile, and especially the fact that you can tap tempo the whole damn thing, so you can just sort of be changing it up all the time, so it's pretty cool" – Omar Rodríguez-López on the Boss SL-20 Slicer Twin Pedal, 0:55

In this video Omar Rodríguez-López of The Mars Volta, De Facto, Startled Calf, El Grupo Nuevo De Omar Rodriguez Lopez, and At The Drive-In talks about his pedalboard and equipment he is using, containing an EarthQuaker Devices Rainbow Machine Polyphonic Pitch Mesmerizer.

A Line 6 M9 Stompbox Modeler can be seen on Omar's pedalboard at about 5 minutes into the video.

Used on early TMV pedalboards

"And then, for me, another cornerstone is the Digital Delay, the DD-5, had that since I can remember, since it came out... the most common setting for me is the effect all the way up, if you can imagine that, the 3 setting, and then I have the feedback at about 2 o'clock, and the delay time at about 10 o'clock... I could use that for almost anything, so I really love that... I started writing with a delay pedal a lot, just for the simple reason that 'Oh, it sounds like way more notes than I'm actually playing, I sound pretty good right now.'" – Omar Rodríguez-López on the Boss DD-5 Digital Delay Pedal, 1:33

At 3:20 in this rig rundown video, Omar mentions his Empress Fuzz pedal, saying, "Its really nice and its yellow!"

A Phase 90 can be seen on Omar's pedalboard at about 5 minutes into the video.

In November 2015, Omar Rodríguez-López added the Ibanez TS9 Tube Screamer to his pedalboard for the ANTEMASQUE tour with Travis Barker. This marked the first appearance of an overdrive/distortion pedal on his setup, possibly replacing the MXR Micro Amp seen on previous boards. The addition is documented in a user-uploaded photo on Imgur.

In the YouTube video titled "At the Drive-In Performs 'Hostage Stamps,'" Omar Rodríguez-López can be seen using the Strymon BigSky reverb pedal at the 0:18 and 1:00 marks.

A Micro Amp can be seen on Omar's pedalboard at about 5 minutes into the video.

During an interview w/ Orange Amplifiers, Omar Rodriguez-Lopez talks about his Electro-Harmonix Holy Grail Nano [@ 6:52]

"I use that 'cause as much as I'd love to use the reverb on the amp, which I was doing for a while, it's a lot to walk back and forth and turn it up and down. For a while I liked that, I liked the challenge of it, you know, but now there's something that I just need to be able to do as quickly and stay over on this side."

At the center of Omar's pedalboard, he has an older model of the Moog Ring Modulator.

Omar Rodríguez-López is the composer, lead guitarist and producer for the progressive rock group The Mars Volta and the former guitarist for the post-hardcore outfit At the Drive-In.

This guy has a pretty extensive guitar rig. He has a ton of effects pedals!

Let's look at some of the gear and equipment that has been seen in Mars Volta's Omar Rodriguez's guitar rig.

• Danelectro DJ13 French Toast Octave Distortion Pedal

In this photo you can see the Boss VB-2 in Omar's pedalboard in 2009.

The Strymon Timeline can be seen near the Boss tuner in the top row of Omar's pedalboard

He uses classic Deluxe Memory Man.

Omar Rodríguez-López used the Electro-Harmonix EH-7700 Polychorus on early The Mars Volta pedalboards, as evidenced by a user-uploaded photo on the Guitar forum.

Added to his pedal-board in November of 2015 for the ANTEMASQUE tour with Travis Barker. Replaced second DD-5 Digital Delay pedal that he was previously using (his original DD-5 still remains).

In this picture, you can see the George Dennis Phaser in the Omar's Pedalboard in 2009.

In this photo, you can see the Dunlop Rotovibe in Omar's pedalboard in 2009.

In this photo, you can see the Ibanez DE7 in Omar's Pedalboard in 2009. (On the right of the AD/A flanger)

Pedal from Omar's pedalboard

A Memory Boy can be seen on Omar's pedalboard at about 5 minutes into the video.

An HR-2 can be seen on Omar's pedalboard at about 5 minutes into the video.

Seen at 3:32, after the Empress Fuzz pedal.

Omar Rodríguez-López used a vintage A/DA Flanger on early The Mars Volta pedalboards, as shown in a user-uploaded photo on the Guitar forum.

Outside of the board, Omar has an MM4 Modulation pedal connected to everything else.

At the far right, Omar has a multi-modulation pedal on his pedalboard.

Replaced his Catalinbread Callisto as his primary Chorus sound in November of 2015 for the ANTEMASQUE tour with travis barker.