Dimebag Darrell

A Furman PQ-3 can be seen in this detailed gear diagram of Dimebag Darrell's Pantera stage setup.

In an interview from this article by HP Newquist, originally published in GUITAR Magazine (September 1995):

What about effects?

Diambag Darrell: Honestly, I go straight through my stack with just a couple of rack things. Live I just have my soundman out front. He does my delays – his choice of the delays, I don’t’ care, just put the fucking echo on there when it’s needed. We do have the delays all time out. He also does some Harmonizer stuff to double the runs on some of the songs off of Cowboys From Hell so that it sounds like we have two guitars playing. Through my rack I have an MXR flanger/doubler. It’s not really an effect because it’s on all the time, and my tech and I work tight on that sound."

In a video tour of his house and studio featured by Guitar World on YouTube, Dimebag Darrell is shown using the DBX 166 - 2 Channel Stereo Compressor, highlighting its role in his recording setup.

Dimebag Darrell is known to use the TC Electronic D-Two effects processor, as detailed in the "Gearheads" section on Funksheet.

Used on The Great Southern Treadkill, as stated in this June 1996 Guitar World interview.

You've got a huge pile of effects boxes in the studio. Aside from the ones you've already mentioned, what other units did you use?

I hooked up my MXR Flanger/Doubler every once in a while and I used an E-Bow for a real smooth, continual sustain on "10's." I also used one of those little Korg Pandora boxes for a weird, fluttering sound on a short passage in "10's" and a Lexicon Vortex for the shimmering, breathy tone on my theme-like lead in "The Underground in America."

I also used a Roland AP-2 Phase II pedal, a KorgAX30G, a Digitech Whammy pedal, of course!, a Boss CE1 Chorus and a bunch of old Electro-Harmonix shit -- a Small Stone Phaser, an Electric Mistress Flanger/Filter Matrix, a Little Big Muff and a Soul Preacher Compressor/Sustainer. I also used a Korg G1 on the demos and some of that made it on the record. If l can't beat a part of the demo we'II just extract that small section and use it. The G1 is a bad-sounding little unit, man.

There's some wah on the record, too.

Shit, I almost forgot about that! I used my Vox Wah on the earlier part of the recording and then Jimmy Dunlop sent me one of his rack-mount units [Crybaby DCR-1SR]. Man, that thing is incredible, you can literally get whatever you want out of it. I also really like the idea that you can run a bunch of Wah pedals all over the place on stage with it so you're not always tied to that one spot. The only uncool thing about it is that Rex [Brown, bassist] will be dicking me off every night 'cause he'll be jumping on my pedals all the time!

Visible in this photo of Darrell's rack gear. It is also mentioned in this 1992 interview at 21:27 and this June 1996 Guitar World interview.

Interview with Pete Brown, 1992

[Brown] What kind of Randalls are they?

[Darrell] They're Randall RG100HTs. They're rack mount. I think HT means "rack mount", I don't know.

[Brown] You got a pedal board?

[Darrell] I don't I have them in a rack and the only thing else I use is a Furman PQ-4 parametric equalizer. I just use that, I don't really use it for much more than just cuttin' out some frequencies that I don't want and boostin' a couple that I do want. And the main thing is another vital, detrimental thing to my tone, is a little blue MXR Six Band EQ, nine volt battery and that's it. I use a-

[Brown] A whammy pedal?

[Darrell] I don't even include that, because I come out and I fuckin' just use that thing to get super ridiculous squeals. I just got it, I don't even know how to use it good yet.

Guitar World, June 1996, posted online on January 22, 2013 as "From the Archive: Dimebag Darrell Discusses Pantera's 1996 Album, 'The Great Southern Trendkill'"

You've got a killer, brittle rhythm tone on this album. Have you changed your basic setup at all since the last record?

Kinda. I ended up using the old, carpeted Randall RG-100 head I recorded Cowboys From Hell with.

What happened to the Randall Century 200's you've been playing through for the longest time?

When we were jamming around and doing the demos I didn't bother to hook up my normal rig; I just wanted something that would do the job. So, we dragged in a bunch of my old shit and set it up. In addition to my RG-100 stack, I used an old Furman PQ-3 parametric EQ, which has a different gain structure from the PQ-4's I've got in my main rack, my blue MXR 6-band graphic EQ and a cheap little Boss Noise Gate. Then, when we did the demos, I was liking the way everything was sounding so I thought, "Don't fuck with it, there it is!"

Used live during the mid 90s

Source: Dime's Guitar Tech's Instagram: https://www.instagram.com/p/BpdAkIunZQt/

In this interview of Dimebag Darrell from around the time that The Great Southern Trendkill came out, he is quoted as saying; “I also used one of those little Korg Pandora boxes for a weird, fluttering sound on a short passage in "10's" and a Lexicon Vortex for the shimmering, breathy tone on my theme-like lead in "The Underground in America."