How to Set Up a Listening Room - Listening Room Acoustics -
Building my HiFi room and how I treated it acoustically. (Day 2) - YouTube
Absorber und Diffusor für HiFi-Raum - SilentFiber
Demo and Listing Rooms - The Sound Organisation, York - Dealers in hi-fi equipment from Arcam, B&W, Fyne Audio, Linn, KEF, Naim, Rotel, and many others