I’m extremely lucky that the chief planning officer has granted me exclusive room of one of the spare bedrooms as a dedicated listening room and whilst I had got my hifi set up pretty well, as the room is mine to do with as I please I decided to take a look at room measuring and room correction. Being the lazy type I am I managed to secure the services of Mike and Nico of Halcyon Audio (highly recommend btw) and blimey what a difference just tweaking the position of the speakers and nudging a bit of furniture has made! Haven’t even needed any acoustic panels or anything.
Mike made it look easy and he could point at some unwanted peaks and troughs, identify very specific bits of furniture which were causing the imbalance and adjust the position of the speaker to work with the room instead of against it.
DIY is eminently achievable if you spend a bit of time learning how to interpret the measurement graphs etc and measuring software like REW is free but watching Mike show me a spike on the graph and go 'and that’s that shelf over there causing the issue and that one is that snake tank (I keep snakes as well as hifi) causing that imbalance was impressive.
Would highly recommend anyone with remotely a permanent set up to invest in a room measuring mic and having a go or to do what I did and get someone in who knows what they are doing as it has made perhaps the biggest single improvement to my audio outside of a major component change. Really quite startling the difference it has made.