Tim Henson

Both of Polyphia's guitarists use Orange Dark Terror heads as part of their, "on stage sound".

As he wrote in the description of this video, where the amp is also clearly visible startimg at 0:00 and shown throughout: "Using the "Wooden Bridge" preset from the Spark smart amp by Positive grid."

At 0.23 you can see he uses this amp

On Instagram Tim posted a photo of his dad playing guitar on their new tour rig https://www.instagram.com/p/BQRrMPugL7s/?utm_source=ig_share_sheet&igshid=kqngm1swibuf And in footage of live shows you can see them using this Cab along with the Orange Dark Terror https://www.youtube.com/watch?v=mcWEefWPQZY Also on Wired Guitarist an article talks about all sorts of their gear http://www.wiredguitarist.com/2017/03/06/geared-polyphia/

In the Dunlop Sessions: Polyphia video, Tim Henson is seen using the EVH 5150III 50W 1x12 Tube Guitar Combo at the 0:23 mark.

Tim Henson uses the Marshall JCM800 2204 amplifier head during live performances, as evidenced by a user-uploaded photo. Additionally, his plugin is modeled on this iconic amp.

Tim Henson of Polyphia uses the Marshall Astoria Classic 30-watt Handwired Tube Head during live performances, as seen in a user-uploaded photo featuring the amp alongside his LA Custom Shop Guitar, the TOD100.

In a user-uploaded photo, Tim Henson is seen with the Marshall Astoria AST1C Classic Model 30W 1x12 Hand-Wired Tube Guitar Combo Amp, accompanied by the matching Marshall Astoria cabinet.