Why does room correction break the “Stradivari”?
As discussed in part 1, you hear everything in a room with the acoustic reality of the room; meaning every original sound – voices, instruments, stereo systems or whatever can produce sound waves – reaches your ears after being influenced by specific responding room acoustics. Since we are used to those circumstances, we don’t recognise room influences and preceive them as normal, or in measurement terms neutral = flat. If room correction neutralizes the sound from your stereo system, the sound gets to your ears without being influenced by the room response (or with a more balanced out room response). Compared to other familiar sounds in that room which sound neutral to us, our ears and brain (working together as usual) decipher a sound with an emphasis and damping. The “Stradivari” coming out of your speakers now has bumps, holes or warps. Same applies to the Bösendorfer, Steinway and yes, even for Frank Sinatra’s voice (or Marilyn Manson’s, if your musical favorites are a bit more “off broadway”.)
My suggestion is rather than to try to get good and balanced room acoustics, avoid too much reflections, and don’t kill all treble with curtains, carpets, and cushions, but also stiffen the walls if they are too wobbly. And NEVER EVER put bronze resonators in your room, even if they are called HighEnd, Maximum or Esoteric Booster.