Build a Pro Studio Diffusor for Just 9€

Most diffusors you find in stores are expensive — and often not even real QRD (Quadratic Residue Diffusors), but just random patterns that don’t diffuse properly.

In this video, I’ll show you step by step how I built a real QRD diffusor for just 9€.

Diffusion is essential if you want your room to sound alive and natural, while still controlling ugly hard reflections. A properly treated room with diffusion will sound smoother, larger, and more professional than one without.

I’ll cover:
• Why most commercial diffusors are overpriced or misleading
• The difference between random patterns and real QRD design
• The exact materials I used (and how I kept the cost under 10€)
• Step-by-step build process

👉 If you missed it, check out my last video:    • Build a Pro Studio Absorber for Just 37€  

Together, these projects give you an affordable way to treat your room like a pro studio.

Program Used: https://www.subwoofer-builder.com/qrd...

Dimensions:
Frame Grid Wood Strips: 508x110mm (12x)
Frame Wall Strips: 508x110mm (2x)
Frame Wall Strips: 514x110mm (2x)
Well Bottoms: 70x70mm (49x)
The Slots are 70/143/216mm away from the end of the strips.

Template Block Heights (in mm):
37-0-55-73-55-0-37
0-92-18-37-18-92-0
55-18-73-92-73-18-55
73-37-92-110-92-37-73
55-18-73-92-73-18-55
0-92-18-37-18-92-0
37-0-55-73-55-0-37


Material Used:
-3mm thick MDF panels for the grid/frame
-4mm thick plywood for the well bottoms

►Connect with Patrick Damiani and Tidalwave Studio:
https://www.tidalwave.de
  / tidalwavestudio  
  / tidalwave_studios  

►Subscribe on YouTube:
   / @tidalwavestudio  

0:00 Intro
1:18 Make The Template
2:22 Why Use Diffusion?
2:58 Build The Frame
4:55 Absorption vs. Diffusion
6:29 Well Bottoms & Glue-Up
8:41 The More Diffusion, The Better
9:45 Frame The Diffusor
10:23 Final Words


#DIYAcoustics #HomeStudio #DiffusorBuild #StudioAcoustics #DIYRecording