Omar Rodríguez-López

"I just play the simple combo amp, you know, the Rockerverb 50 now, works best for me." – Omar Rodríguez-López on the Orange Rockerverb 50.

The video description offered more detail, "Omar Rodriguez-Lopez (The Mars Volta, At The Drive In) gives an in-depth interview about his Orange Rockerverb 50 2X12 Combo, pedal-board, and his newest musical venture, Bosnian Rainbows."

Omar used to play through a SVT head with marshall cabs on the early period of the Mars volta

At 0;10 Omar is playing through a Vox AC30 combo amp.

Omar Rodríguez-López used the Orange AD140 HTC amplifier as his primary live amp until 2011. By 2007, he employed four of these on stage, reducing to one by 2009, and later switched to a single Orange combo in 2011. In the studio, this amp was crucial for his primary overdrive sound on rhythm guitars. Notably, in 2007, all amplifier heads and cabinets were painted white. A photo on Bellazon provides visual evidence of his setup.

Omar Rodríguez-López, the lead guitarist of The Mars Volta, uses the Orange Crush Pro 4x12" Closed Back Speaker Cabinet, as detailed in his gear rig on Uberproaudio.

In the YouTube video "At The Drive-In - Live @ Big Day Out 2001 [HD] [Remastered]" by SKEvil, Omar Rodríguez-López is seen using a Marshall MG Cab alongside his Orange OR120 amplifier.

the orange OR120 was omars main amp during ATDI eras.

At around the 1:45 mark in the YouTube video titled "The Mars Volta - At The Drive In - Omar Rodriguez Lopez - Gear Rundown - Guitars, Amps, Pedals" by Future Sound Music, it is shown that Omar Rodríguez-López uses the Marshall Super Lead 100-Watt Head.