Deadmau5

Throughout the video, you can see Joel's incredible module setup, and all of them residing in 2 Doepher A-100 Monster Case stacked on top of eachother.

At precisely 0:18, you can see written on the case: "A-100 ANALOG MODULAR SYSTEM DOEPHER", confirming that this is one of Doepher's A-100 cases.

EDIT: Another link: https://www.youtube.com/watch?v=9UJq1ZAR7hk

The Buchla 200e modular can be seen in Deadmau5 studio pictures from this Synthtopia article.

Doepfer A-187-1 VCDSP can be seen at 0:15 in this video Deadmau5 posted.

Deadmau5 talks about his Z8000 in this video starting at 1:40 saying, "I love this sequencer, dude."

Deadmau5 uses two of these filters (top left) in his eurorack modular synth along with many other modules!

In this Instagram picture, Deadmau5 shows his Mutable Instruments Clouds module, with the caption, "Yes!!! Shits about to get REAL interesting in the studio today :)"

In this Instagram photo, an Erbe-Verb is shown surrounded by bubble wrap. The picture is captioned: "Errrrrbeverb!"

In this instagram post, Deadmau5 posts a Moog Model IIIp synthesizer.

This Metasonix VCO/VCF can be seen in Deadmau5's Eurorack in photos of his studio from this Synthtopia article.

A E340 Cloud Generator is seen on the right side of Deadmau5's modular at 0:17 in this video.

"Aaaactually, imma go for this... Pittsburg modular fella !"

This was his setup at the Hollywood Palladium - August 25-28, 2011

Click on Rukes link for photo.

The Wiard Envelator can be seen at the bottom middle of the screen at 3:14 in one of deadmau5's racks of synthesizers Imgur Image

The Tyme Sefari can be seen at the middle bottom of the video at 3:14 Imgur Image

At 3:28 in the bottom right of the top left eurorack, a wiard noisering can just about be made out when zooming at a high resolution

A Cylonix Intellijel Cyclebox II can be seen at the right of the second row of the eurorack shown at 3:06.

Deadmau5's studio has a Modcan modular wall which incorporates the B Series Case Option 1.

Modcan's B Series Case Option 2 can be seen at the bottom of one of Deadmau5's studio modular synth walls.

The Modcan 07B oscillator can be seen in Deadmau5's studio.

The Cwejman VCO-2RM is spotted in Deadmau5's "i normally do this on sundays."

Three Livewire Audio Frequency Generators can be seen in Deadmau5's studio. Original source here, from July 2012.

The MacBeth M5N can be seen in Deadmau5's video starting at 1:10.

The Wiard Boogie Filter is included in Deadmau5's modular synth near the bottom of the rack.

Joel uses 2 DPO's for modular madness.

Two of the Macbeth dual oscillator modules can be in the top right of the top left Eurorack case.

At 1:57 in the video, Joel says he got the Synthwerks MG-1 for his monster eurorack setup, referring to it as "...this button guy..."

http://www.modcan.com/bmodules/4vca.html In the very lower left corner of the modular cabinet is the distinctive shape of the 4VCA, rows of 2-2 knobs followed by 4 jacks then another 2-2 knobs followed by 4-4 jacks.

In this video, deadmau5 can be seen playing a lead sound using the Waldorf KB37 Keyboard. The modules installed are the Waldorf NW1 and the Waldorf mod1. He says:

Little more context... nice lead machine! #waldorf

Which refers to a previous Instagram post where he says, "Loving the sounds coming outta the #waldorf nw1 on the kb37 rack... must dig deeper."

A CS-8 can be seen towards the right of the rack shown at 3:06.

The Wiard Oscillator can be seen at the top left of the rack shown at 3:14 Imgur Image