How good can it get, really? - my stereo sounds amazing!

The quality of your ears, in relation to home stereo, is limited by the best system you have ever heard. Before you hear a system that is a revelation you dont really know what you are missing, nor how your home system compares. 

When respondents get on this forum telling you to ignore cables, tweaks and room treatments take a look at their systems and then choose if you should listen or ignore. Many enthusiasts have already made a decision about such things and any communication with these members is casting pearls before swine. 

Like audiozenology states, furniture is no substitute for room treatments. FACT!

taras22
I agree that carefully selected furniture can help, but this is no substitute for good quality acoustic treatments. Most I build myself, but I did recently buy some of the best quality diffusors for a song and was very impressed. If you have the ability to DIY, then treatment doesnt cost much.

Who is the hack? Did clearthink take his toys and go home?

Stereo subs have always sounded superior to me. 

So going further West was a good idea? 

Explain to me how anything that resonates can improve the sound unless you are cancelling unwanted resonances. So certainly you are not claiming these resonators are a one size fits all solution. 

If its U2 it should cost less than we spend on gear!